Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan cau » toan cau, quan cau, tuan cu

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

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