Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
cong vang » cong lang, cong quang, cong ngang
cong van » cong san, song van, cong tan
han tap » han tai, toan tap, nhan tai

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