I have heard my mom said "te mèt sa". What does that means and in what context is it used in? Also, are there other expressions with the same meaning as the one above?

te mèt sa (Li te mèt sa)
or
menm si se te sa
or 
menm si se ta sa
or
tout menm
or
malgre sa
even so
even if it was so
nonetheless

egzanp:
Pa di m ou pèdi tout lajan m nan yon paryaj.  Te mèt sa, ou dwe ranbouse mwen li.
Don't tell me you lost all my money in a bet.  Nonetheless, you must reimburse me.

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

nonetheless

nonetheless → tout menm, malgre sa, antouka, menm si se te sa, menm si se ta sa, te mèt sa

Li pa kalifye, men yo ba li dyòb la tout menm.
He's not qualified, but they gave him the job nonetheless.

Mwen malad, men mwen dwe al travay malgre sa.
I'm ill, but I must go to work nonetheless