like: chứng thực
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
chứng thực * ☊ 
to certify, prove * ☊
[ chứng ] : disease, ailment, symptom, sickness, illness; proof, evidence
[ thực ] : to grow, develop, reproduce, colonize; to eat (up); (2) true, real
[ thực ] : real