Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach nuoc » sach duoc, cac nuoc, bach tuoc
hoc nganh » hoc nhanh
cach hoc » cach thuc, cach thoi, dich hoc
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc bai » hoc dai, hoc giai
bai hoi » bai choi, bai hoc, dai hoi
va nhan » van nhan, ca nhan, va phan

You may be able to get more results by adjusting your search query.

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