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

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