Ủa, còn nhỏ vậy à 
Oh, still that smell, huh! [ còn ] : (1) to be, remain, be left, have left; (2) also, as for, still, in addition
[ nhỏ ] : (1) small, young; (2) to drop
[ vậy ] : so, thus, that
[ à ] : (1) (indicates surprise, sympathy); (2) (sentence starting particle), oh, by the way; (3) to rush, flood
Most Common Compounds Set 1:
Most Common Compounds Set 2 :