Perhaps you should try some spelling variations:
nghien huu » nguyen huu, nhiem huu, chien huu
nganh cong » nhanh chong, thanh cong
chau thanh » chu thanh, hau thanh, pham thanh
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
hoi chau » hoi chu, hoi cham, hai chau
tu sach » thu sach, su sach, te sach
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) OR (nghien cuu)) mon hoc nganh cong hoc xa hoi chau thanh san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, ((nghien huu) OR (nghien cuu)) mon hoc nganh cong hoc xa hoi chau thanh san".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, ((nghien huu) OR (nghien cuu)) mon hoc nganh cong hoc xa hoi chau thanh san*.