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 » cau phan, chau nhan, chau phong
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
hoi chau » hoi chu, hoi cham, hai chau
phan van » pham van, thanh van, luan van
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) OR (mach hoc)) tap, nghien huu mon hoc nganh cong hoc xa hoi chau phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (mach hoc)) tap, nghien huu mon hoc nganh cong hoc xa hoi chau phan van".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) OR (mach hoc)) tap, nghien huu mon hoc nganh cong hoc xa hoi chau phan van*.