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
van nhan » van phan, van thanh, danh nhan
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi van » hoi va, hoi dan, hai van
nhan va » nhan tai, nhan dan, nhan tao
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 van nhan 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 van nhan 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 van nhan va*.