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
cach hoc » cach thuc, cach thoi, dich hoc
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
mai hoi » mai khoi, lai hoi, mai doi
dai hoi » dai hoc, dai hai, dai moi
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 cach hoc tap, nghien cuu mon hoc nganh khong hoc ((mai hoi) OR (dai hoi)) va nhan dan~.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu mon hoc nganh khong hoc ((mai hoi) or (dai hoi)) va nhan dan*.