like: cứng rắn
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
cứng rắn * ☊ 
firm, hard, rigid, steady, strong, resolute * ☊
[ cứng ] : hard, firm, rigid, tough
[ rắn ] : (1) snake; (2) hard, rigid; to harden
[ cứng ] : hard
[ cứng ] : stiff
[ rắn ] : snake