Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trong vat » trong van, trong va, trong dat
vat dung » van dung, va dung, viet dung
cong san » cong tac
tai cao » thai cao, tao cao, tai sao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - thanh trong vat dung ((trong cac) or (cong san)) tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trong vat dung ((trong cac) OR (cong san)) tai cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trong vat dung ((trong cac) or (cong san)) tai cao*.