Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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 ((trung va) OR (trung ha)) nhung ((cong dan) OR (cong tan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung va) OR (trung ha)) nhung ((cong dan) or (cong tan)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung va) OR (trung ha)) nhung ((cong dan) or (cong tan)) toan cao*.