Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
sach ngoai » dich ngoai, gach ngoi, sach ngan
ngoai tap » ngoai tac, ngoai tai, ngoai tru
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
cua nhan » ca nhan, cua nha, cua nhung
cua ngan » cua ban, vu ngan, cua dan
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
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: su sach ngoai tap, nghien cuu mon hoc nganh khong hoc xa hoi ((cua nhan) or (cua ngan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ngoai tap, nghien cuu mon hoc nganh khong hoc xa hoi ((cua nhan) OR (cua ngan)) van.
• Adding a wildcard symbol may retrieve word variants: su sach ngoai tap, nghien cuu mon hoc nganh khong hoc xa hoi ((cua nhan) or (cua ngan)) van*.