Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dong cang » dong bang, dong cung, dong nang
dong cong » duong cong, dung cong, dang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh ha » thanh ha, trang ha, trinh ha
ban can » ban dan, ban hang, ban hanh
van cau » van dau, van hau, van chat

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 ha ((dong cang) OR (dong cong)) thang ((ban can) or (van cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh tranh ha ((dong cang) OR (dong cong)) thang ((ban can) OR (van cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh tranh ha ((dong cang) OR (dong cong)) thang ((ban can) or (van cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tranh ha ((dong cang) OR (dong cong)) thang ((ban can) or (van cau))*.