Perhaps you should try some spelling variations:
dunning smith » turning smith, dennis smith, using smith
john dunning » john jennings, john dunton, john dennis
fenton smith » exton smith, brunton smith, preston smith
john fenton » john dunton, john fenn, john hinton

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: (( john dunning smith ) OR ( john fenton smith )).
• Adding a wildcard symbol may retrieve word variants: (( john dunning smith ) or ( john fenton smith ))*.