Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
sach hoi » sach doi, cach thoi, hoach hoi
sach moi » sach doi, bach mai, sach bai
cuu toan » cuu hoan, cua toan, huu toan
toan hoc » toan khoa, van hoc, hoa hoc
cong hoc » dong hoc, cong hoa, cong coc
va doanh » van doanh, vay doanh, va danh
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: te ((sach hoi) or (sach moi)) tap, nghien cuu toan hoc nganh cong hoc xa hoi va doanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach hoi) OR (sach moi)) tap, nghien cuu toan hoc nganh cong hoc xa hoi va doanh tai.
• Adding a wildcard symbol may retrieve word variants: te ((sach hoi) or (sach moi)) tap, nghien cuu toan hoc nganh cong hoc xa hoi va doanh tai*.