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