Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan hang » luan nang, luan han, luan hung
thanh chu » thanh chau, thanh cha, thanh thu
cong van » cong vang, song van, cong tan
cong san » cong tac

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)) - hanh tang luan hang ((cong van) or (cong san)) thanh chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - hanh tang luan hang ((cong van) OR (cong san)) thanh chu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - hanh tang luan hang ((cong van) or (cong san)) thanh chu".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - hanh tang luan hang ((cong van) or (cong san)) thanh chu*.