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

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