Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh khoa
nganh nong » nganh cong
sach hoc » cach hoc, sach hoi, mach hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
te sach » toc sach
va nhan » van nhan, ca nhan, va phan
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: te sach hoc tap, nghien cuu tong hoc ((nganh khong) or (nganh nong)) hoc xa hoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu tong hoc ((nganh khong) OR (nganh nong)) hoc xa hoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu tong hoc ((nganh khong) or (nganh nong)) hoc xa hoi va nhan va*.