Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
dan toan » van toan, dan than, manh toan

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 - canh tranh cua ((nhung cong) OR (hang cong)) ((dan toan) or (tinh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh tranh cua ((nhung cong) OR (hang cong)) ((dan toan) OR (tinh toan)) cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh tranh cua ((nhung cong) OR (hang cong)) ((dan toan) or (tinh toan)) cao*".