Perhaps you should try some spelling variations:
khong thuong » thong thuong, hang thuong, cong thuong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thuong dan » huong dan, thuong han, thuong dam
cua khong » hua khong, cua phuong, cua thuong
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.

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