Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
van cau » van dau, van chat, toan cau
van hau » van ha, van hai, van dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((canh tranh) or (thanh trung)) cua cong cong san ((van cau) OR (van hau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((canh tranh) OR (thanh trung)) cua cong cong san ((van cau) OR (van hau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((canh tranh) or (thanh trung)) cua cong cong san ((van cau) OR (van hau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((canh tranh) or (thanh trung)) cua cong cong san ((van cau) OR (van hau))*.