Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung hoc » trung quoc
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ha » trung tam, trung cap
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 ha) OR (trung hoc)) dung cong dan ((than cau) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung ha) OR (trung hoc)) dung cong dan ((than cau) or (than cap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung ha) OR (trung hoc)) dung cong dan ((than cau) or (than cap))*.