Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trong van » trong cac
ho chieu » theo chieu, hoc thieu, doi chieu
cap dung » cao dung, chan dung, cach dung
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
ap dung » xay dung, van dung

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

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