Perhaps you should try some spelling variations:
"ian duncan smith" » "ian duncan sarah", "ian duncan sir", "brian duncan smith", "jon duncan smith", "innes duncan smith"
"john duncan smith" » "john duncan sarah", "john duncan sir", "john dunton smith", "john dunning smith"
"a duncan scott" » "a duncan scotus", "a duncan stone", "ra duncan scott", "_ duncan scott", "j duncan scott"

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