Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trong vat » trong van, trong va, trong dat
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban 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 (truong dai)) dung cong tan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((trong vat) OR (truong dai)) dung cong tan than cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((trong vat) or (truong dai)) dung cong tan than cao*.