Perhaps you should try some spelling variations:
brunton smith » preston smith, sutton smith
dunton smith » sutton smith, fenton smith, huston smith
duncan smith » duncan sarah, duncan sir, duncan scott
john duncan » john dunton, john dunning

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 duncan smith ) OR ( john ((dunton smith) OR (brunton smith)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( john duncan smith ) or ( john ((dunton smith) OR (brunton smith)) ))".
• Adding a wildcard symbol may retrieve word variants: (( john duncan smith ) or ( john ((dunton smith) OR (brunton smith)) ))*.