Perhaps you should try some spelling variations:
"brian duncan smith" » "brian duncan sarah", "brian duncan sir", "brian duncan scott", "bra duncan smith", "brjon duncan smith", "brinnes duncan smith"
"ian duncan smith" » "ian duncan sarah", "ian duncan sir", "ian duncan scott", "a duncan smith", "jon duncan smith", "innes duncan smith"
"bruce duncan smith" » "bruce duncan sarah", "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: (((("brian duncan smith") OR ("ian duncan smith"))) OR ("bruce duncan smith")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"brian duncan smith\") OR (\"ian duncan smith\"))) or (\"bruce duncan smith\"))".
• Removing quotes may allow a broader search: (((( brian duncan smith ) OR ( ian duncan smith ))) or ( bruce duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (((("brian duncan smith") OR ("ian duncan smith"))) or ("bruce duncan smith"))*.