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
cong hoc » dong hoc, cong hoa, cong coc
khoa cau » khoa chau, khoa cam, hoa cau
cau luan » cu luan, dau luan, lau luan
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
huu mon » huu son, hau mon, huu mot
mon hoc » toan hoc, dong hoc
xa khoa » da khoa, bia khoa, tai khoa
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) or (su sach)) hoc tap, nghien huu mon hoc nganh cong hoc xa khoa cau luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) hoc tap, nghien huu mon hoc nganh cong hoc xa khoa cau luan van.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) hoc tap, nghien huu mon hoc nganh cong hoc xa khoa cau luan van*.