Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
hoc tai » hoc dai, hoc tap, hoc bai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cac » hoc cac, voi cac, hoa cac
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
hoi ca » hoi cua, hoi cau, hoi va

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: thuat sach hoc tai, nghien cuu mon hoc nganh khoa hoc xa ((hoi ca) OR (hoi cac)) nhan va~.
• Adding a wildcard symbol may retrieve word variants: thuat sach hoc tai, nghien cuu mon hoc nganh khoa hoc xa ((hoi ca) or (hoi cac)) nhan va*.