Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trong van » trong cac
lap dung » cap dung, lam dung, lao dung
lan dung » van dung, dan dung, lan hung
van toan » van tuan, van tan, van thanh
toan ban » van ban
ap dung » xay dung, van dung

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: doi chieu xanh - thanh trung ((((lap dung) OR (lan dung))) OR (ap dung)) trong van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh trung ((((lap dung) OR (lan dung))) or (ap dung)) trong van toan ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung ((((lap dung) OR (lan dung))) or (ap dung)) trong van toan ban*.