kẻ ăn mày 
beggar [ kẻ ] : individual, single, person, man; to write (on a sign)
[ ăn ] : (1) to eat (away at), attack, corrode, cost; to attend, celebrate, take part in (a event where food is served); (3) to earn illegally
[ mày ] : you (used by a superior to an inferior)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :