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

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