Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
toan phan » thanh phan, toan ban, hoa phan
dam phan » d phan, va phan, van phan

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 sach)) - canh tranh van nhung cong ((dam phan) or (toan phan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - canh tranh van nhung cong ((dam phan) OR (toan phan)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sach)) - canh tranh van nhung cong ((dam phan) or (toan phan)) tu".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sach)) - canh tranh van nhung cong ((dam phan) or (toan phan)) tu*.