Perhaps you should try some spelling variations:
"social metwork" » "social petworks", "social netword", "social network's", "social metworks", "social metyork"
"social network" » "social networks", "social netyork"
"social work" » "social works", "social york"
"social networks" » "social networkss", "social netyorks"

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: (((((("social network") OR ("social metwork"))) OR ("social work"))) OR ("social networks")).
• Removing quotes may allow a broader search: (((((( social network ) or ( social metwork ))) or ( social work ))) or ( social networks )).
• Adding a wildcard symbol may retrieve word variants: (((((("social network") or ("social metwork"))) or ("social work"))) or ("social networks"))*.