nên thân 
sound, thorough [ nên ] : (1) ought to, should, had better; (2) candle; (3) so, that’s why, consequently, so, therefore, (4) become
[ thân ] : (1) intimate, close, dear; (2) person, body; (3) ninth year of the Chinese zodiac (“monkey”)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
trở nên thân thiết to become friends bị mắng một trận nên thân to get a sound scolding