Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nghiep vu » nghiep va
cuong ban » cuong bang, cuong bai, tuong ban
ban thanh » ban hanh, ban hang
hinh hoc » sinh hoc, tin hoc, benh hoc
cong hoc » dong hoc, cong hoa, cong coc
tan luan » tang luan, toan luan, dan luan
tu hinh » tu minh, tu hanh, su hinh
hai tan » hai van, hai quan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hinh hoc tap, ((nghien cac) or (nghiep vu)) cuong ban thanh cong hoc xa hai tan luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hinh hoc tap, ((nghien cac) OR (nghiep vu)) cuong ban thanh cong hoc xa hai tan luan van.
• Adding a wildcard symbol may retrieve word variants: tu hinh hoc tap, ((nghien cac) or (nghiep vu)) cuong ban thanh cong hoc xa hai tan luan van*.