Perhaps you should try some spelling variations:
"ian duncan smith" » "ian duncan sarah", "ian duncan scott", "brian duncan smith", "jon duncan smith", "innes duncan smith"
"a duncan smith" » "a duncan sarah", "a duncan scott", "ra duncan smith", "j duncan smith", "mr duncan smith"
"_ duncan smith" » "_ duncan sarah", "_ duncan scott", "_ dunciad smith"
"m duncan sir" » "m duncan i", "m duncan sarah", "mr duncan sir", "j duncan sir"

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