Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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) OR (su sach)) hoc tap, nghien cuu mon hoc nganh khong hoc xa hoi van nhan tai~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) hoc tap, nghien cuu mon hoc nganh khong hoc xa hoi van nhan tai*.