Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
trung cap » trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, than cap

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

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