cho tới bây giờ 
(up) until now [ cho ] : add, give; to, for; to say, claim; in order to; let, allow, permit
[ tới ] : to come, arrive, reach; until, to; next
[ bây ] : (1) shameless, brazen; (2) this, this extent
[ giờ ] : time (of the clock), hour, o’clock; now is the time (for sth)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :