trong phạm vi 
in the field of [ trong ] : during; in(side), among
[ phạm ] : (1) to take; (2) to commit (a crime), offend
[ vi ] : (1) to surround; (2) to act as; (3) small, subtle, delicate, tiny, micro; (4) to disobey; (5) (shark’s) fin
Most Common Compounds Set 1:
Most Common Compounds Set 2 :