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

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 ((("_ duncan smith") OR ("j duncan smith")))).
• Removing quotes may allow a broader search: (( jon duncan smith ) or ((( _ duncan smith ) or ( j duncan smith )))).
• Adding a wildcard symbol may retrieve word variants: (("jon duncan smith") or ((("_ duncan smith") or ("j duncan smith"))))*.