Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh luan » trinh luan, trinh luat, doanh luan
luan hung » luan chung, lan hung, luan ung
cong vang » cong lang, cong quang, cong ngang
quang ban » quang binh, quang tuan, quang tran
cong van » cong san, song van, cong tan

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 (chieu sach)) - canh tranh luan hung ((cong van) OR (cong vang)) quang ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - canh tranh luan hung ((cong van) OR (cong vang)) quang ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - canh tranh luan hung ((cong van) OR (cong vang)) quang ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - canh tranh luan hung ((cong van) OR (cong vang)) quang ban*.