Perhaps you should try some spelling variations:
"ra duncan smith" » "ra duncan sarah", "ra duncan scott", "mr duncan smith", "j duncan smith", "m duncan smith"
"_ duncan smith" » "_ duncan sarah", "_ duncan scott", "_ dunciad smith"
"jon duncan smith" » "jon duncan sarah", "jon duncan scott", "john duncan smith", "j duncan smith", "colin duncan smith"
"ian duncan smith" » "ian duncan sarah", "ian duncan scott", "brian duncan smith", "a duncan smith", "innes duncan smith"
"jon duncan sir" » "john duncan sir", "j duncan sir", "colin duncan sir", "jon duncan i", "jon 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: (((("ra duncan smith") OR ("_ duncan smith"))) OR ((((("jon duncan smith") OR ("ian duncan smith"))) OR ("jon duncan sir")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ra duncan smith\") OR (\"_ duncan smith\"))) or (((((\"jon duncan smith\") or (\"ian duncan smith\"))) or (\"jon duncan sir\"))))".
• Removing quotes may allow a broader search: (((( ra duncan smith ) OR ( _ duncan smith ))) or ((((( jon duncan smith ) or ( ian duncan smith ))) or ( jon duncan sir )))).
• Adding a wildcard symbol may retrieve word variants: (((("ra duncan smith") OR ("_ duncan smith"))) or ((((("jon duncan smith") or ("ian duncan smith"))) or ("jon duncan sir"))))*.