Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tranh tran » thanh tran, tranh toan, tranh tren
tran dung » tran dang, tran hung, tran quang
dung cong » dung trong
cong lang » cong vang, cong luong, cong quang
tai cau » tai cac
tai cao » thai cao, tao cao, tai sao

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: ho ((chieu xanh) OR (chieu sang)) - canh tranh tran dung cong lang ((tai cau) OR (tai cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - canh tranh tran dung cong lang ((tai cau) or (tai cao))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - canh tranh tran dung cong lang ((tai cau) or (tai cao))*.