Perhaps you should try some spelling variations:
tranh trong » tran trong, trinh trong, anh trong
thanh trong » thanh trung, hanh trong, nhanh trong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
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) OR (tranh 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) OR (tranh trong)) vat dung ((trong cac) OR (cong san)) tai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((thanh trong) OR (tranh trong)) vat dung ((trong cac) or (cong san)) tai cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((thanh trong) OR (tranh trong)) vat dung ((trong cac) or (cong san)) tai cao*.