Perhaps you should try some spelling variations:
duncan smith » duncan sarah, duncan sir, duncan scott
ian duncan » brian duncan, jon duncan, innes duncan
a duncan » ra duncan, m duncan, r duncan
j duncan » mr duncan
_ duncan » _ dunciad

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