Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh dang » anh dong, anh dung, anh bang
doan van » doan va, hoang van, luan van
dan van » dang van, dao van, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - ((canh tranh) or (anh dang)) cua nhung cong ((dan van) OR (doan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((canh tranh) OR (anh dang)) cua nhung cong ((dan van) OR (doan van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((canh tranh) or (anh dang)) cua nhung cong ((dan van) OR (doan van)) ban".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((canh tranh) or (anh dang)) cua nhung cong ((dan van) OR (doan van)) ban*.