Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
gian dan » gian lang
nhan tai » hang tai, van tai, toan tai
tu cach » tu cac
hoc xa » hoc ma

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