Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
sach doi » sach hoi, sach moi, sach dao
cuu dong » cuu cong, cuu tong, cuu long
co nganh » hoc nganh, cac nganh, moi nganh
phan dan » phan dang, phan dau, nhan dan
va phan » van phan, va phat, va phap
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) or (sach doi)) tap, nghien cuu dong co nganh khong hoc xa hoi va phan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (sach doi)) tap, nghien cuu dong co nganh khong hoc xa hoi va phan dan.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (sach doi)) tap, nghien cuu dong co nganh khong hoc xa hoi va phan dan*.