Perhaps you should try some spelling variations:
"ian duncan smith" » "ian duncan sir", "brian duncan smith", "a duncan smith", "jon duncan smith"
"ian duncan sarah" » "ian duncan adam", "ian duncan shaw", "ian duncan sir", "brian duncan sarah", "a duncan sarah", "jon duncan sarah"
"ian duncan scott" » "ian duncan scotus", "ian duncan stone", "brian duncan scott", "a duncan scott", "jon duncan scott"
"ian duncan gray" » "ian duncan grant", "ian duncan green", "brian duncan gray", "a duncan gray", "jon duncan gray"

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