Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
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 nganh cong hoc xa hoi ((chau phan) OR (cau phan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien huu mon hoc nganh 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 nganh cong hoc xa hoi ((chau phan) OR (cau phan)) van*.