Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
sach hoc » cach hoc, sach hoi, mach hoc
anh khoa » doanh khoa, hang khoa
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
va nhan » van nhan, ca nhan, va phan

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 hoc tap, nghien cuu mon hoc ((anh khoa) or (nganh khong)) hoc mai hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu mon hoc ((anh khoa) OR (nganh khong)) hoc mai hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu mon hoc ((anh khoa) or (nganh khong)) hoc mai hoi va nhan dan*.