Perhaps you should try some spelling variations:
"_ dunciad sarah" » "_ dunciad early", "_ duncan sara"
"ian duncan smith" » "ian duncan sir", "ian duncan scott", "brian duncan smith", "jon duncan smith", "innes duncan smith"
"a duncan smith" » "a duncan sir", "a duncan scott", "ra duncan smith", "j duncan smith", "m duncan smith"
"_ duncan sarah" » "_ duncan adam", "_ duncan gray", "_ duncan shaw"

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