Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
hang cong » dang cong, hang nong, bang cong
van thanh » van tuan
ban thanh » ban hanh, ban hang
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha

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 ((trung va) or (truong cao)) hang cong ((van thanh) OR (ban thanh)) chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung va) OR (truong cao)) hang cong ((van thanh) OR (ban thanh)) chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung va) or (truong cao)) hang cong ((van thanh) OR (ban thanh)) chau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung va) or (truong cao)) hang cong ((van thanh) OR (ban thanh)) chau*.