Search Results in SharePoint Online for multilanguage pages

Hi,

we are using SharePoint Online out of the box multi language functionality. Unfortunately, the search results are only displayed in the language which corresponds to the browser language of the user. This results in the fact that if a user has configured the browser language to "English" but searches for a word in a German version of a page that this page is not displayed. I found the following article, but this does not work. Is there any way to ensure that search results are displayed independently from the browser language or at least I have the chance to switch the language? So, if I'm using English as default language that I get also results for German.

Thanks a lot in advance