Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan

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