Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nganh khoa » nganh hoa, doanh khoa, anh khoa
sach hoc » cach hoc, sach hoi, mach hoc
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
phan va » phan van, nhan va, han va
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: su sach hoc tap, nghien cuu mon hoc ((nganh khoa) or (nganh khong)) hoc xa hoi va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien cuu mon hoc ((nganh khoa) OR (nganh khong)) hoc xa hoi va phan va.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cuu mon hoc ((nganh khoa) or (nganh khong)) hoc xa hoi va phan va*.