Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh cong » nhanh chong, thanh cong
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
thoi tap » toi tap, hoc tap, thoi dai
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
va thanh » gia thanh, ban thanh, va tinh
tu cach » tu cac
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: tu cach thoi tap, nghien cac cong hoc nganh cong hoc ((mai hoi) or (xa hoi)) va thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi tap, nghien cac cong hoc nganh cong hoc ((mai hoi) OR (xa hoi)) va thanh van.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cac cong hoc nganh cong hoc ((mai hoi) or (xa hoi)) va thanh van*.