Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh dong » nganh cong, nhanh dong, nganh nong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
dong hoc » dong co, dong luc
cau luan » cu luan, dau luan, khau luan
lau luan » dau luan, lap luan, khau luan
tu sach » thu sach, su sach, te sach
huu mon » huu son, hau mon, huu mot
mon hoc » toan 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 dong hoc xa hoi ((cau luan) or (lau luan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien huu mon hoc nganh dong hoc xa hoi ((cau luan) OR (lau luan)) van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien huu mon hoc nganh dong hoc xa hoi ((cau luan) or (lau luan)) van*.