gật đầu thông cảm 
to nod in sympathy [ gật ] : to nod
[ đầu ] : (1) beginning, first; (2) head, mind, pole, end, hood (of a car)
[ thông ] : (1) message; (2) pine tree
[ cảm ] : (1) to catch cold, have a cold; (2) to feel, feeling; (3) to dare
Most Common Compounds Set 1:
Most Common Compounds Set 2 :