Perhaps you should try some spelling variations:
nganh khong » nhanh chong, nganh nong, nganh khoa
nganh cong » nhanh chong, thanh cong
sach hoc » cach hoc, sach hoi, mach hoc
thuoc la » thuoc ma, thuoc va, thuoc tai
phan van » pham van, thanh van, luan van
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va phan » van phan, va phat, va phap
la hoi » lai hoi, xa hoi, le hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach hoc tap, nghien cuu mon hoc ((nganh khong) or (nganh cong)) thuoc la hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien cuu mon hoc ((nganh khong) OR (nganh cong)) thuoc la hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cuu mon hoc ((nganh khong) or (nganh cong)) thuoc la hoi va phan van*.