Perhaps you should try some spelling variations:
duncan smith » duncan sarah, duncan sir, duncan scott
brown duncan » brown dunstan, brian duncan, john duncan
ian duncan » brian duncan, a duncan, jon duncan
duncan i » duncan _, duncan m, 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: (( ian duncan smith ) OR ( brown duncan i )).
• Adding a wildcard symbol may retrieve word variants: (( ian duncan smith ) or ( brown duncan i ))*.