Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
chieu xanh » chieu sach, chieu sang, chieu tinh
quang dung » quang trung, ung dung, cuong dung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chan cau » phan cau, can cau, chinh cau

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 - canh tranh quang dung ((cong dan) OR (cong san)) chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh tranh quang dung ((cong dan) OR (cong san)) chan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tranh quang dung ((cong dan) OR (cong san)) chan cau*.