Perhaps you should try some spelling variations:
nganh nong » nganh cong
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
cac toan » cac khoan, hach toan, cac thanh
toan tap » toan ban
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
nong hoc » dong hoc, nang hoc, nong thon
hoi van » hoi va, hoi dan, hai van
su cac » tu cac, su cao, su 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 cac toan tap, nghien cuu tong hoc nganh nong hoc ma ((hoi van) or (hoa dan)) thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac toan tap, nghien cuu tong hoc nganh nong hoc ma ((hoi van) OR (hoa dan)) thanh van.
• Adding a wildcard symbol may retrieve word variants: su cac toan tap, nghien cuu tong hoc nganh nong hoc ma ((hoi van) or (hoa dan)) thanh van*.