Perhaps you should try some spelling variations:
chiet tach » chieu sach
doi chiet » doi chieu, doi chi, doi viet
tranh va » tranh van, trang va, trinh va
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cao » chan cho, chat cao, chay cao
va ban » van ban, va bai, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chiet tach - canh tranh va ban ((cong dan) OR (cong tan)) chan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chiet tach - canh tranh va ban ((cong dan) OR (cong tan)) chan cao".
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - canh tranh va ban ((cong dan) OR (cong tan)) chan cao*.