Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
trung cap » truong cao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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