Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, cong cong
dang cong » dung cong
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 cua ((dong cong) OR (dang cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - canh tranh cua ((dong cong) OR (dang cong)) dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - canh tranh cua ((dong cong) OR (dang cong)) dan toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - canh tranh cua ((dong cong) OR (dang cong)) dan toan ban*.