Perhaps you should try some spelling variations:
"the expert's guide in .net" » "the expert guide in .net"
"The experts voices in .NET" » "The experts sources in .NET", "The experts view in .NET", "The experts views in .NET"
"The expert voices in .NET" » "The expert sources in .NET", "The expert view in .NET", "The expert views in .NET"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("The expert voices in .NET") OR ("The experts voices in .NET"))) OR ("the expert's guide in .net"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"The expert voices in .NET\") OR (\"The experts voices in .NET\"))) or (\"the expert's guide in .net\"))*".
• Removing quotes may allow a broader search: (((( The expert voices in .NET ) OR ( The experts voices in .NET ))) or ( the expert's guide in .net ))*.