To change Youtube UI language, click on the upper-right (profile) button:
...and find the "Language" setting:
When the new language is selected, Youtube interface will change to the selected language, but more importantly, this will give you better search results in the language you study.
...and find the "Language" setting:
When the new language is selected, Youtube interface will change to the selected language, but more importantly, this will give you better search results in the language you study.