Perhaps you should try some spelling variations:
nganh dung » ngan dung, anh dung, nganh cong
cach thoi » cac thoi, cach thuc, cach noi
coc nganh » hoc nganh, cac nganh, chuc nganh
thanh van » thanh san, thanh toan, thanh phan
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
dung hoc » dong hoc, dung thuoc, trung hoc
va thanh » gia thanh, ban thanh, va tinh
tu cach » tu cac
mai hoi » mai khoi, lai hoi, mai doi
dai hoi » dai hoc, dai hai, dai moi

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 cuu cong coc nganh dung hoc ((mai hoi) or (dai hoi)) va thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi tap, nghien cuu cong coc nganh dung hoc ((mai hoi) OR (dai hoi)) va thanh van.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu cong coc nganh dung hoc ((mai hoi) or (dai hoi)) va thanh van*.