Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tranh cua » doanh cua, manh cua
cong vang » cong lang, cong quang, cong ngang
cua dung » cua dang, cua dong, qua dung
cong van » cong san, song van, cong tan
toan tap » toan ban

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

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