Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh hung » thanh huong, thanh tung, thanh trung
dung cong » dung trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: chao ((chieu xanh) or (chieu sach)) - ((thanh thuong) or (thanh hung)) su dung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chieu xanh) OR (chieu sach)) - ((thanh thuong) OR (thanh hung)) su dung cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: chao ((chieu xanh) or (chieu sach)) - ((thanh thuong) or (thanh hung)) su dung cong san toan cao*.