Perhaps you should try some spelling variations:
"jon duncan scott" » "jon duncan scotus", "jon duncan stone", "john duncan scott", "j duncan scott", "colin duncan scott"
"ian duncan smith" » "ian duncan sarah", "brian duncan smith", "a duncan smith", "innes duncan smith"
"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 smith") OR ("ian duncan sir"))) OR ("jon duncan scott")).
• Removing quotes may allow a broader search: (((( ian duncan smith ) or ( ian duncan sir ))) or ( jon duncan scott )).
• Adding a wildcard symbol may retrieve word variants: (((("ian duncan smith") or ("ian duncan sir"))) or ("jon duncan scott"))*.