Perhaps you should try some spelling variations:
hoc thanh » hoc nhanh, hoan thanh, hoc phan
cach hoc » cach thuc, cach thoi, dich hoc
cong hoc » dong hoc, cong hoa, cong coc
van nhan » van phan, van thanh, danh nhan
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien cuu mon hoc thanh cong hoc ma hoi ((van nhan) or (benh nhan)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cuu mon hoc thanh cong hoc ma hoi ((van nhan) OR (benh nhan)) dan.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu mon hoc thanh cong hoc ma hoi ((van nhan) or (benh nhan)) dan*.