vô ý thức 
unconscious [ vô ] : (1) in-, im-, (negative prefix); (2) in, at, on; (3) to go into, enter [= vào]
[ ý ] : (1) opinion, mind, position, thought, idea; (2) Italy
[ thức ] : (1) manner, form, pattern; (2) to wake, awaken
Most Common Compounds Set 1:
Most Common Compounds Set 2 :