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