Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chu bang
tuong cua » truong cua, huong cua, thong cua
dang cong » dung cong
chu xanh » chu manh, chieu xanh, chuc danh
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - manh ((tuong cua) OR (thong quan)) dang cong san toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chua xang)) - manh ((tuong cua) or (thong quan)) dang cong san toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chua xang)) - manh ((tuong cua) or (thong quan)) dang cong san toan cau*.