Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
quang dung » quang trung, cuong dung
doi chieu » doc hieu, doi chi, ho chieu
hanh dong » anh dong, ha dong
trong tan » trong quan, trong cac, trong ca
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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 - hanh dong ((quang dung) or (ung dung)) trong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh dong ((quang dung) OR (ung dung)) trong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh dong ((quang dung) or (ung dung)) trong tan toan cao*.