Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
cong cong » cong dong, trong cong, dung cong
doc hieu » hoc thieu, hoc hien
van cong » van dong, van phong, phan cong
cong tac » cong ty
tac danh » sach danh, cac doanh, cac dan
danh ca » dan ca, doanh cua, danh cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) manh - thanh luan van cong cong tac danh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) manh - thanh luan van cong cong tac danh ca*.