Perhaps you should try some spelling variations:
nguyen huu » nguyen duc
nganh cong » nhanh chong, thanh cong
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
toan hoc » toan khoa, van hoc, hoa hoc
cong hoc » dong hoc, cong hoa, cong coc
mon hoc » dong hoc
su luan » tu luan, luc luan
hoc xa » hoc ma
hoi su » hoi suc, khoi su, thoi su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoc tap, nguyen huu ((mon hoc) OR (toan hoc)) nganh cong hoc xa hoi su luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nguyen huu ((mon hoc) OR (toan hoc)) nganh cong hoc xa hoi su luan van".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nguyen huu ((mon hoc) OR (toan hoc)) nganh cong hoc xa hoi su luan van*.