Perhaps you should try some spelling variations:
chieu xanh » chieu tinh, hieu manh
chieu sang » hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, hieu cach
tranh tai » tranh thai, trinh tai, thanh tai
dung cong » dung trong
tai dung » trai dung, thi dung, mai dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

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