Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
luong khoi » luong khoa, luong khong, luong thi
khoi nganh » hoc nganh, moi nganh
nghien cu » nghien cuu, nghiep cua, nghiep cau
khong hoc » khung hoc, thong hoc, khong thuoc
ban thanh » ban hanh, ban hang
sach hoc » cach hoc, sach hoi, mach hoc
cu luong » cat luong, huy luong, do luong
va thanh » gia thanh, va tinh, le thanh
su sach » so sach, vu sach
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 hoc tap, nghien cu luong khoi nganh khong hoc xa hoi ((va thanh) OR (ban thanh)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach hoc tap, nghien cu luong khoi nganh khong hoc xa hoi ((va thanh) OR (ban thanh)) van".
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cu luong khoi nganh khong hoc xa hoi ((va thanh) OR (ban thanh)) van*.