Perhaps you should try some spelling variations:
"jon duncan smith" » "jon duncan sarah", "jon duncan sir", "jon duncan scott", "ian duncan smith"
"john duncan smith" » "john duncan sarah", "john duncan sir", "john duncan scott", "john dunton smith", "john dunning smith"
"colin duncan smith" » "colin duncan sarah", "colin duncan sir", "colin duncan scott"
"j duncan smith" » "j duncan sarah", "j duncan sir", "j duncan scott", "_ duncan smith", "mr duncan smith"

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: (((((("jon duncan smith") OR ("john duncan smith"))) OR ("colin duncan smith"))) OR ("j duncan smith")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"jon duncan smith\") OR (\"john duncan smith\"))) or (\"colin duncan smith\"))) or (\"j duncan smith\"))".
• Removing quotes may allow a broader search: (((((( jon duncan smith ) OR ( john duncan smith ))) or ( colin duncan smith ))) or ( j duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (((((("jon duncan smith") OR ("john duncan smith"))) or ("colin duncan smith"))) or ("j duncan smith"))*.