Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (trieu tinh)) - canh tranh van nhung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (trieu tinh)) - canh tranh van nhung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (trieu tinh)) - canh tranh van nhung cong van toan cao*.