Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
doi chieu » doc hieu, doi chi, ho chieu
trung va » truong va, trang va, trung ha
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trung va nhung ((cong dan) or (cong tan)) ((khan cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trung va nhung ((cong dan) OR (cong tan)) ((khan cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trung va nhung ((cong dan) or (cong tan)) ((khan cap) or (phan cau))*.