Perhaps you should try some spelling variations:
duncan scotus » duns scotus
brian duncan » ian duncan, bruce duncan
duncan smith » duncan sarah, duncan sir, duncan scott
a duncan » ra duncan, _ duncan, j 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: (( brian duncan smith ) OR ( a duncan scotus )).
• Adding a wildcard symbol may retrieve word variants: (( brian duncan smith ) or ( a duncan scotus ))*.