Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh va » tranh van, trang va, trinh va
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan lap » phan dau
phan cac » nhan cach, phan dau, phan van

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: doi chieu sach - canh tranh va nhung ((cong dan) OR (cong tan)) ((phan lap) OR (phan cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh va nhung ((cong dan) OR (cong tan)) ((phan lap) or (phan cac))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh va nhung ((cong dan) OR (cong tan)) ((phan lap) or (phan cac))*.