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