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