thông kim bác cổ 
thorough comprehension of ancient and modern learning [ thông ] : (1) message; (2) pine tree
[ kim ] : needle, pin; metal, gold, hand (on a watch)
[ bác ] : (1) uncle, father’s older brother; (2) wise, learned; (3) to scramble (eggs); (4) cannon; (5) ample, wide; (6) to reject
[ cổ ] : (1) neck, collar; (2) ancient, old, out of date, old fashioned; (3) drum; (4) merchant; (5) blind; (6) leg; (7) share, stock
Most Common Compounds Set 1:
Most Common Compounds Set 2 :