Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thanh nhan » thanh phan, thanh san, thanh toan
luc nhanh » luc nhan, luc nganh, luc canh
chong hoc » chung hoc, thong hoc, thuong hoc
chong doc » chong dich, chon loc, hong duc
hoi thanh » hoc thanh, hai thanh, hoa thanh
cong luc » dong luc, cong suc, cong duc
nhan dan » phan dau, gian dan, nhan tai
cac hoc » cach hoc, cac hop, bac hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac hoc tap, nghien thu cong luc nhanh ((chong hoc) or (chong doc)) xa hoi thanh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac hoc tap, nghien thu cong luc nhanh ((chong hoc) OR (chong doc)) xa hoi thanh nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu cac hoc tap, nghien thu cong luc nhanh ((chong hoc) or (chong doc)) xa hoi thanh nhan dan*.