Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong quang » luong quang, thong quang, duong quang
quang tuan » quang thanh, quan luan, quang cua
kha dung » khoa dung, khao dung, nha dung
tuan cao » toan cao, juan cao, quang cao
ha dung » hai dung, nha dung, ha dong

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 (chinh sach)) - thanh cong ((ha dung) OR (kha dung)) cong quang tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chinh sach)) - thanh cong ((ha dung) OR (kha dung)) cong quang tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chinh sach)) - thanh cong ((ha dung) OR (kha dung)) cong quang tuan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chinh sach)) - thanh cong ((ha dung) OR (kha dung)) cong quang tuan cao*.