Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
thanh toan » thanh hoa, thanh san, tinh toan
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
phan dau » phan tu, hang dau
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
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: tu sach hoc tap, nghien cuu mon hoc nganh khong hoc xa hoi va ((phan dau) or (thanh toan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu mon hoc nganh khong hoc xa hoi va ((phan dau) OR (thanh toan)).
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mon hoc nganh khong hoc xa hoi va ((phan dau) or (thanh toan))*.