Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong bang » cuong bang, dong bang, hong bang
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong san, cong tan, cong dan
phan cau » phan dau, phan cac, phan tu

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