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