Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
thanh phan » thanh pho, thanh san, thanh toan
cach thoi » cach thuc, cach noi
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
cac thoi » cac toi, cac hop, cac tro
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
da thanh » dao thanh, dat thanh, dam thanh
hoc xa » hoc ma
hoi da » hoi dap, hoi dan, hoi dat

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((cach thoi) or (cac thoi)) tap, nghien cuu cong hoc nganh khong hoc xa hoi da thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((cach thoi) OR (cac thoi)) tap, nghien cuu cong hoc nganh khong hoc xa hoi da thanh phan.
• Adding a wildcard symbol may retrieve word variants: su ((cach thoi) or (cac thoi)) tap, nghien cuu cong hoc nganh khong hoc xa hoi da thanh phan*.