like: tận lực
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
tận lực * ☊ 
to try one’s best * ☊
[ tận ] : all the way; ending, finished; as far as, to
[ lực ] : force, energy, strength, ability