diff -r 796725d33b67 -r d7c5b43d309a server/src/app/Http/Controllers/Api/DocumentController.php
--- a/server/src/app/Http/Controllers/Api/DocumentController.php	Wed Oct 19 13:08:02 2016 +0200
+++ b/server/src/app/Http/Controllers/Api/DocumentController.php	Wed Oct 19 15:55:04 2016 +0200
@@ -40,6 +40,10 @@
         if(!empty($location)) {
             $filters['location'] = $location;
         }
+        $themes = CorpusFilterManager::prepareTheme($request->input('theme', []));
+        if(!empty($themes)) {
+            $filters['themes'] = $themes;
+        }
 
         $sort = $request->input('sort', null);