Perhaps you should try some spelling variations:
"the expertise sources in .net" » "the expert sources in .net", "the expertise studies in .net", "the expertise survey in .net"
"the experts sources in .net" » "the expert sources in .net", "the experts resources in .net", "the expected sources in .net"
"the expert view in .net" » "the expert views in .net", "the expert review in .net"

Try widening your search to All Fields.

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 experts sources in .net") OR ("the expertise sources in .net"))) OR ("the expert view in .net")).
• Removing quotes may allow a broader search: (((( the experts sources in .net ) or ( the expertise sources in .net ))) or ( the expert view in .net )).
• Adding a wildcard symbol may retrieve word variants: (((("the experts sources in .net") or ("the expertise sources in .net"))) or ("the expert view in .net"))*.