Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
canh trinh » canh tranh, hanh trinh, canh tinh
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: ho ((chieu xanh) or (chiet tach)) - canh trinh va nhung ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chiet tach)) - canh trinh va nhung ((cong dan) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chiet tach)) - canh trinh va nhung ((cong dan) OR (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - canh trinh va nhung ((cong dan) OR (cong san)) phan cau*.