Perhaps you should try some spelling variations:
duncan smith » duncan sarah, duncan scott
duncan sir » duncan i, duncan sarah
ian duncan » brian duncan, a duncan, jon duncan
mr duncan » _ duncan, mr dundas

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 sir ) OR ( ian duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (( mr duncan sir ) or ( ian duncan smith ))*.