không thành vấn đề 
it’s not an issue [ không ] : (1) no, not; (question tag); (2) air; (3) empty
[ thành ] : (1) citadel, fortress, wall; (2) to, into; (3) to succeed; (4) to become; (5) honest, sincere
[ vấn ] : to ask, question
[ đề ] : (1) to write; (2) to propose; (3) to lift
Most Common Compounds Set 1:
Most Common Compounds Set 2 :