Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
sach duoc » sach nuoc, sach dao, sach dung
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, sach moi, cach thoi
phan van » pham van, thanh van, luan van
va phan » van phan, va phat, va phap
cuu co » huu co, cua co, cuu mo
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: thu ((sach duoc) or (sach hoi)) tap, nghien cuu co hoc nganh khong hoc xa hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach duoc) OR (sach hoi)) tap, nghien cuu co hoc nganh khong hoc xa hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: thu ((sach duoc) or (sach hoi)) tap, nghien cuu co hoc nganh khong hoc xa hoi va phan van*.