like: trống rỗng
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
trống rỗng * ☊ 
empty, hollow, futile * ☊
[ trống ] : (1) empty, vacant; (2) male (bird); (3) drum
[ rỗng ] : empty, hollow
[ trống ] : drum
[ trống ] : empty
[ rỗng ] : hollow