Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
trong san » trong cac, cong san, dong san
dap dung » ap dung, dap ung, cap dung
dan dung » van dung, tin dung, ap dung
san toan » van toan, dan toan, manh toan
toan ban » van ban

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 tung ((dap dung) OR (dan dung)) trong san toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh tung ((dap dung) OR (dan dung)) trong san toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tung ((dap dung) OR (dan dung)) trong san toan ban*.