học tập cải tạo 
to study reeducation (euphemism for being in a reeducation camp) [ học ] : to study, learn (how to); field of study
[ tập ] : (1) to practice, drill, edit; (2) ream of paper, volume (of prose)
[ cải ] : (1) to change, reform, tap; (2) cabbage
[ tạo ] : to create, make, form, establish
Most Common Compounds Set 1:
Most Common Compounds Set 2 :