Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
cong hoa » dong hoa, dong hoc, hang hoa
van nhan » van phan, van thanh, danh nhan
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoa mai » hoa dai, hoa may, hoa moi
mai hoi » mai khoi, dai hoi, lai hoi
va nhan » ca nhan, va phan, va nha

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thoi tap, nghien cuu mon hoc nganh cong hoa mai hoi ((va nhan) OR (van nhan)) van~".
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu mon hoc nganh cong hoa mai hoi ((va nhan) OR (van nhan)) van*.