Perhaps you should try some spelling variations:
thanh chong » thanh chuong, thanh cong, nhanh chong
nghien cua » nghien cuu, nghiep cua, nghiep vua
doc thanh » duoc thanh, hoc thanh, duc thanh
chong hoc » chung hoc, chong doc, thong hoc
hoc cach » hoc cac, hoc sach, cuoc cach
cach hoc » cach thuc, cach thoi, dich hoc
cong doc » chong doc, cong coc, cong dac
va nhan » van nhan, ca nhan, va nha
va phan » van phan, va phat, va phap
hoc xa » hoc ma

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

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