Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
thanh van » thanh san, thanh toan, thanh phan
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
can toi » can thi, van toi, cac toi
toi tap » toi gap, toan tap, tong tap
hoi van » hoi va, hoi dan, hai van
su can » su van, su cao, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su can toi tap, nghien cuu tong hoc nganh khung hoc ma ((hoi van) or (hoa dan)) thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su can toi tap, nghien cuu tong hoc nganh khung hoc ma ((hoi van) OR (hoa dan)) thanh van.
• Adding a wildcard symbol may retrieve word variants: su can toi tap, nghien cuu tong hoc nganh khung hoc ma ((hoi van) or (hoa dan)) thanh van*.