Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
cong hoa » dong hoa, hang hoa
hoi chau » hoi chu, hoi cham, hai chau
toc cham » toc thai
tu sach » thu sach, su sach, te sach

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 cuu dong hoc nganh cong hoa xa ((hoi chau) or (toc cham)) luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu dong hoc nganh cong hoa xa ((hoi chau) OR (toc cham)) luan van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu dong hoc nganh cong hoa xa ((hoi chau) or (toc cham)) luan van*.