ăn gian 
to cheat ăn lận to cheat [ 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
[ lận ] : (1) to cheat, deceive; (2) be stingy
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
buôn gian bán lận to cheat in commerce, traffic cờ gian bạc lận to cheat in gambling