Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
quang dung » quang trung, ung dung, cuong dung
cac phan » cac nhan, cao phan, cap phan
phan cac » nhan cach, phan dau, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chiet tach)) - canh tranh quang dung trong cac phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chiet tach)) - canh tranh quang dung trong cac phan cac.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - canh tranh quang dung trong cac phan cac*.