Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc thanh » hoc nhanh, hoan thanh, hoc phan
chau phan » chau nhan, chau phong, cho phan
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
cau phan » cuu phan, cac phan, cao phan
tu sach » thu sach, su sach, te sach
huu mon » huu son, hau mon, huu mot
mon hoc » toan hoc, dong hoc
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: tu sach hoc tap, nghien huu mon hoc thanh cong hoc xa hoi ((chau phan) or (cau phan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien huu mon hoc thanh cong hoc xa hoi ((chau phan) OR (cau phan)) van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien huu mon hoc thanh cong hoc xa hoi ((chau phan) or (cau phan)) van*.