Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, hanh dung
thanh hung » thanh huong, thanh tung, thanh trung
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cua bang » chua bang, cua ban, cua dang
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan

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 - ((thanh dung) or (thanh hung)) cua bang cong ((dan than) OR (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((thanh dung) OR (thanh hung)) cua bang cong ((dan than) OR (van than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((thanh dung) or (thanh hung)) cua bang cong ((dan than) OR (van than)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((thanh dung) or (thanh hung)) cua bang cong ((dan than) OR (van than)) cau*.