Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu xanh » hieu manh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cong dang » cong dong, cong dan, cong danh
cong dung » cuong dung, cong dong, cong luong
thanh cac » hanh cac, thanh bac, thanh ca

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

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