Multilingual site

Hello,

I have Relevanssi installed on my wordpress site and qtranslate-x plugin for translation. I have two languages on my site.
The expected scenario: I have custom post type with taxonomy (and terms for example A, B, C). I need when user search for specific term, for example term B, all the posts that belong to term B to be shown. I need the search to work on both languages.
What happens: If user search term B on default site language, the results are fine – all the posts that belong to term B are shown. But, if user search term B but on the second language ( with the translation of the term B) the posts that belong to that term are not shown and the results are not correct.
Is there any way that I can solve this, so the search works on both languages?

Thanks!