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
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
van phan » van phong, van thanh, luan phan
te sach » toc sach
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi

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

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