Perhaps you should try some spelling variations:
"jon duncan smith" » "jon duncan sarah", "jon duncan scott", "john duncan smith", "j duncan smith", "colin duncan smith"
"ian duncan stone" » "ian duncan street", "ian duncan jane", "ian duncan diane", "brian duncan stone", "a duncan stone", "innes duncan stone"
"ian duncan sir" » "brian duncan sir", "a duncan sir", "innes duncan sir", "ian duncan i", "ian duncan sarah"

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: (((("ian duncan stone") OR ("ian duncan sir"))) OR ("jon duncan smith"))*.
• Removing quotes may allow a broader search: (((( ian duncan stone ) or ( ian duncan sir ))) or ( jon duncan smith ))*.