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 dang » hanh dong, anh dang, hanh dung
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 dang ((quang dung) OR (ung dung)) trong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - hanh dang ((quang dung) OR (ung dung)) trong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh dang ((quang dung) OR (ung dung)) trong tan toan cao*.