như điên như dại 
like crazy or mad or the devil, with a vengeance, madly [ như ] : like, for example, as, such as, similar
[ điên ] : mad, crazy, insane
[ như ] : like, for example, as, such as, similar
[ dại ] : silly, naive, stupid, unwise
Most Common Compounds Set 1:
Most Common Compounds Set 2 :