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

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 ("colin duncan scott"))) OR ("j duncan smith")).
• Removing quotes may allow a broader search: (((( jon duncan smith ) or ( colin duncan scott ))) or ( j duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (((("jon duncan smith") or ("colin duncan scott"))) or ("j duncan smith"))*.