Enable multilang filter at system level for content and headings Add an activity in your frontpage containing multilang tags in both the name and description You can use this sting: <span lang="en" class="multilang">is english ok?</span><span lang="ca" class="multilang">is català ok?</span><span lang="es" class="multilang">is español ok?</span><span lang="fr" class="multilang">is français ok?</span> Setup search ( https://docs.moodle.org/31/en/Global_search ) and index your site's contents Search one of the words that is contained in the activity you previously added (note that the first and last word of each multilang tag may be merged when converting HTML to plain text, so better use words in the middle) The result in search/index.php title and description should contain all languages contents merged together and you should see the result with no tags in the title nor description