Vocal removal usually works by removing sounds that are the same. See http://manual.audacityteam.org/o/man/tutorial_vocal_removal_and_isolation.html .
Having a song in another language won’t help you all that much. Having an identical vocals only track might.
Also see this Nyquist plug-in https://forum.audacityteam.org/t/karaoke-rotation-panning-more/30112/1 .
See how to install Nyquist plug-ins .
Gale