Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trong » hanh trang, anh trong, hinh trong
cong quang » luong quang, thong quang, duong quang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
trong ca » trong cac, trong nha
ca dung » cao dung, cap dung, cu dung
ban can » ban dan, ban hang, ban hanh
ban co » ban do, san co

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 - hanh trong ca dung cong quang ((ban can) or (ban co))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh trong ca dung cong quang ((ban can) OR (ban co)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh trong ca dung cong quang ((ban can) or (ban co))*.