Perhaps you should try some spelling variations:
"bruce duncan sarah" » "bruce duncan adam", "bruce duncan gray", "bruce duncan shaw"
"ian duncan smith" » "ian duncan sir", "ian duncan scott", "brian duncan smith", "a duncan smith", "jon duncan smith"
"bruce duncan smith" » "bruce duncan sir", "bruce 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 ((("bruce duncan smith") OR ("bruce duncan sarah"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"ian duncan smith\") or (((\"bruce duncan smith\") OR (\"bruce duncan sarah\"))))*".
• Removing quotes may allow a broader search: (( ian duncan smith ) or ((( bruce duncan smith ) OR ( bruce duncan sarah ))))*.