Perhaps you should try some spelling variations:
trong van » trong cac
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
van dung » van dong, xay dung, tin dung
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
va dung » va duong, vat dung, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu xanh - nhanh quang ((va dung) or (van dung)) trong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu xanh - nhanh quang ((va dung) OR (van dung)) trong van toan cao.
• Adding a wildcard symbol may retrieve word variants: chao chu xanh - nhanh quang ((va dung) or (van dung)) trong van toan cao*.