Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
phan quang » pham quang, phan quan, nhanh quang
quang dung » quang trung, ung dung, cuong dung
doi chieu » doc hieu, doi chi, mot chieu
danh phan » doanh phan, danh nhan, danh phap
cac phan » cac nhan, cao phan, cap phan

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 - danh phan quang dung trong cac phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - danh phan quang dung trong cac phan tu*.