Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
thanh toan » thanh hoa, thanh san, tinh toan
hoc nganh » hoc nhanh
hoi thanh » hoc thanh, hai thanh, hoa thanh
thuc tai » thuc thai, thuoc tai, thuc tap
khoa hoc » hoa hoc
toan tai » toan tap, doanh tai, toan ban
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

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 cach) OR (tu cac)) thuc tai, nghien cuu mon hoc nganh khoa hoc bai hoi thanh toan tai~.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (tu cac)) thuc tai, nghien cuu mon hoc nganh khoa hoc bai hoi thanh toan tai*.