Perhaps you should try some spelling variations:
cong thuoc » cong thuc, dong thuoc, long thuoc
cach thoi » cac thoi, cach thuc, cach noi
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thoi tap » toi tap, hoc tap, thoi dai
thuoc xa » thuoc ma, thuoc va, thuoc la
tu cach » tu cac
va nhan » van nhan, ca nhan, va phan
mo hoc » mon hoc, co hoc

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 thoi tap, nghien cuu mo hoc thanh cong thuoc xa hoi ((va nhan) or (va phat)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi tap, nghien cuu mo hoc thanh cong thuoc xa hoi ((va nhan) OR (va phat)) dan.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu mo hoc thanh cong thuoc xa hoi ((va nhan) or (va phat)) dan*.