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

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 ((("j duncan sir") OR ("colin duncan sir"))))*.
• Removing quotes may allow a broader search: (( jon duncan smith ) or ((( j duncan sir ) or ( colin duncan sir ))))*.