Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cao » truong dai
doi chieu » doc hieu, doi chi, ho chieu
trong vat » trong van, trong dat, trong hoat
dung cong » dung trong
trong va » trong van, trong ca, trong cac
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 xanh - thanh ((((trong vat) or (trong va))) or (truong cao)) dung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((((trong vat) OR (trong va))) OR (truong cao)) dung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((((trong vat) or (trong va))) or (truong cao)) dung cong dan than cao*.