Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
chong hoc » chung hoc, thong hoc, thuong hoc
chong doc » chong dich, chon loc, hong duc
thoi tap » toi tap, hoc tap, thoi dai
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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 dong luc canh ((chong hoc) or (chong doc)) ma hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi tap, nghien cuu dong luc canh ((chong hoc) OR (chong doc)) ma hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu dong luc canh ((chong hoc) or (chong doc)) ma hoi va nhan dan*.