diff --git a/web/modules/custom/materio_sapi/src/Controller/Base.php b/web/modules/custom/materio_sapi/src/Controller/Base.php
index f016a49e..a2483020 100644
--- a/web/modules/custom/materio_sapi/src/Controller/Base.php
+++ b/web/modules/custom/materio_sapi/src/Controller/Base.php
@@ -51,7 +51,7 @@ class Base extends ControllerBase {
     //  - " edismax " => ???
     $parse_mode = \Drupal::service('plugin.manager.search_api.parse_mode')
       ->createInstance('direct');
-    $parse_mode->setConjunction('AND');
+    $parse_mode->setConjunction('OR');
     $this->query->setParseMode($parse_mode);
 
     // Set fulltext search keywords and fields.