Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sach)) - canh trinh va nhung ((cong dan) OR (cong tan)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - canh trinh va nhung ((cong dan) OR (cong tan)) chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - canh trinh va nhung ((cong dan) OR (cong tan)) chan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - canh trinh va nhung ((cong dan) OR (cong tan)) chan cau*.