Perhaps you should try some spelling variations:
"the experts sources in .net" » "the expert sources in .net", "the expertise sources in .net", "the experts resources in .net"
"the expert's guide in .net" » "the expert guide in .net"
"the expert voices in .net" » "the experts voices in .net", "the expert sources in .net", "the expert view 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 expert voices in .net") OR ("the expert's guide in .net"))) OR ("the experts sources in .net")).
• Removing quotes may allow a broader search: (((( the expert voices in .net ) or ( the expert's guide in .net ))) or ( the experts sources in .net )).
• Adding a wildcard symbol may retrieve word variants: (((("the expert voices in .net") or ("the expert's guide in .net"))) or ("the experts sources in .net"))*.