diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 65ba2b4..6ee687a 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -159,8 +159,8 @@ final class BackendController extends Controller
         $devSummaryPath = __DIR__ . '/../../' . $request->getData('id') . '/Docs/Dev/en/SUMMARY.md';
 
         $toParse    = $path === '' ? '' : \file_get_contents($path);
-        $summary    = \file_exists($summaryPath) ? \file_get_contents($summaryPath) : '';
-        $devSummary = \file_exists($devSummaryPath) ? \file_get_contents($devSummaryPath) : '';
+        $summary    = \is_file($summaryPath) ? \file_get_contents($summaryPath) : '';
+        $devSummary = \is_file($devSummaryPath) ? \file_get_contents($devSummaryPath) : '';
 
         $content       = Markdown::parse($toParse === false ? '' : $toParse);
         $navigation    = Markdown::parse($summary === false ? '' : $summary);
diff --git a/Controller/SearchController.php b/Controller/SearchController.php
index 535a225..cd5ad70 100755
--- a/Controller/SearchController.php
+++ b/Controller/SearchController.php
@@ -16,6 +16,8 @@ namespace Modules\Help\Controller;
 
 use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
+use phpOMS\System\File\Local\Directory;
+use phpOMS\System\MimeType;
 
 /**
  * Help class.
@@ -40,8 +42,86 @@ final class SearchController extends Controller
      *
      * @since 1.0.0
      */
-    public function searchHelp(RequestAbstract $request, ResponseAbstract $response, $data = null) : array
+    public function searchHelp(RequestAbstract $request, ResponseAbstract $response, $data = null) : void
     {
-        return ['found'];
+        $lang = 'en';
+
+        if (\is_dir(__DIR__ . '/../Docs/Help/' . $request->getHeader()->getL11n()->getLanguage())) {
+            $lang = $request->getHeader()->getL11n()->getLanguage();
+        } elseif (\is_dir(__DIR__ . '/../Docs/Help/' . $this->app->l11nServer->getLanguage())) {
+            $lang = $this->app->l11nServer->getLanguage();
+        }
+
+        $pattern = \substr(
+            $request->getData('search'),
+            \stripos(
+                $request->getData('search'),
+                ' ',
+                \stripos($request->getData('search'), ':')
+            ) + 1
+        );
+
+        $files = [];
+        $activeModules = $this->app->moduleManager->getActiveModules();
+
+        foreach ($activeModules as $module) {
+            $path    = __DIR__ . '/../../' . $module['name']['internal'] . '/Docs/Help/' . $lang;
+            $toCheck = Directory::listByExtension($path, 'md');
+            foreach ($toCheck as $file) {
+                // @todo: create better matching
+                $content = \file_get_contents($path . '/' . $file);
+                if (($found = \stripos($content, $pattern)) !== false) {
+                    $contentLength = \strlen($content);
+                    $headline      = \strtok($content, "\n");
+
+                    $t1           = \strripos($content, "\n", -$contentLength + $found);
+                    $t2           = \strripos($content, '.', -$contentLength + $found);
+                    $summaryStart = ($t1 !== false && $t2 !== false) || $t1 === $t2
+                        ? \min(
+                            $t1 === false ? 0 : $t1,
+                            $t2 === false ? 0 : $t2,
+                        ) : \max(
+                            $t1 === false ? 0 : $t1,
+                            $t2 === false ? 0 : $t2,
+                        );
+
+                    $t1         = \stripos($content, "\n", $found);
+                    $t2         = \stripos($content, '.', $found);
+                    $summaryEnd = ($t1 !== false && $t2 !== false) || $t1 === $t2 ? \max(
+                            $t1 === false ? $contentLength : $t1,
+                            $t2 === false ? $contentLength : $t2,
+                        ) : \min(
+                            $t1 === false ? $contentLength : $t1,
+                            $t2 === false ? $contentLength : $t2,
+                        );
+
+                    $summary = \substr(
+                        $content,
+                        $summaryStart + 1,
+                        $summaryEnd - $summaryStart
+                    );
+
+                    $files[$module['name']['internal']][] = [
+                        'title' => $module['name']['external'] . ': ' . \trim($headline, " #\r\n\t"),
+                        'summary' => \trim($summary, " #\r\n\t"),
+                        'link' => $path . '/' . $file,
+                        'account' => '',
+                        'createdAt' => \max(
+                            \filectime($path . '/' . $file),
+                            \filemtime($path . '/' . $file)
+                        ),
+                        'image' => '',
+                        'tags' => [],
+                        'type' => 'list_links'
+                    ];
+                    // @todo: add match score for sorted return
+                }
+            }
+        }
+
+        // @todo: probably cleanup return for link generation + sort by best match
+        $response->getHeader()->set('Content-Type', MimeType::M_JSON . '; charset=utf-8', true);
+
+        $response->set($request->getUri()->__toString(), $files);
     }
 }
diff --git a/tests/Controller/SearchControllerTest.php b/tests/Controller/SearchControllerTest.php
new file mode 100644
index 0000000..7dd08d5
--- /dev/null
+++ b/tests/Controller/SearchControllerTest.php
@@ -0,0 +1,103 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.4
+ *
+ * @package   tests
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Admin\tests\Controller;
+
+use Model\CoreSettings;
+use Modules\Admin\Models\AccountPermission;
+use phpOMS\Account\Account;
+use phpOMS\Account\AccountManager;
+use phpOMS\Account\PermissionType;
+use phpOMS\Application\ApplicationAbstract;
+use phpOMS\Dispatcher\Dispatcher;
+use phpOMS\Event\EventManager;
+use phpOMS\Module\ModuleAbstract;
+use phpOMS\Module\ModuleManager;
+use phpOMS\Router\WebRouter;
+use phpOMS\Utils\TestUtils;
+use phpOMS\Message\Http\HttpResponse;
+use phpOMS\Message\Http\HttpRequest;
+use phpOMS\Uri\HttpUri;
+
+/**
+ * @testdox Modules\Admin\tests\Controller\SearchControllerTest: Admin api controller
+ *
+ * @internal
+ */
+class SearchControllerTest extends \PHPUnit\Framework\TestCase
+{
+    protected ApplicationAbstract $app;
+
+    /**
+     * @var \Modules\Help\Controller\SearchController
+     */
+    protected ModuleAbstract $module;
+
+    protected function setUp() : void
+    {
+        $this->app = new class() extends ApplicationAbstract
+        {
+            protected string $appName = 'Search';
+        };
+
+        $this->app->dbPool         = $GLOBALS['dbpool'];
+        $this->app->orgId          = 1;
+        $this->app->appName        = 'Backend';
+        $this->app->accountManager = new AccountManager($GLOBALS['session']);
+        $this->app->appSettings    = new CoreSettings($this->app->dbPool->get());
+        $this->app->moduleManager  = new ModuleManager($this->app, __DIR__ . '/../../../../Modules');
+        $this->app->dispatcher     = new Dispatcher($this->app);
+        $this->app->eventManager   = new EventManager($this->app->dispatcher);
+        $this->app->eventManager->importFromFile(__DIR__ . '/../../../../Web/Api/Hooks.php');
+
+        $account = new Account();
+        TestUtils::setMember($account, 'id', 1);
+
+        $permission = new AccountPermission();
+        $permission->setUnit(1);
+        $permission->setApp('backend');
+        $permission->setPermission(
+            PermissionType::READ
+            | PermissionType::CREATE
+            | PermissionType::MODIFY
+            | PermissionType::DELETE
+            | PermissionType::PERMISSION
+        );
+
+        $account->addPermission($permission);
+
+        $this->app->accountManager->add($account);
+        $this->app->router = new WebRouter();
+
+        $this->module = $this->app->moduleManager->get('Help');
+
+        TestUtils::setMember($this->module, 'app', $this->app);
+    }
+
+    /**
+     * @covers Modules\Help\Controller\SearchController
+     * @group module
+     */
+    public function testHelpSearch() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->getHeader()->setAccount(1);
+        $request->setData('search', ':help file');
+
+        $this->module->searchHelp($request, $response);
+        self::assertCount(3, $response->get(''));
+    }
+}