Perhaps you should try some spelling variations:
"ian duncan scott" » "ian duncan scotus", "brian duncan scott", "a duncan scott", "innes duncan scott"
"ian duncan stone" » "ian duncan street", "ian duncan jane", "ian duncan diane", "brian duncan stone", "a duncan stone", "innes duncan stone"
"jon duncan smith" » "jon duncan sarah", "john duncan smith", "j duncan smith", "colin duncan smith"
"ian duncan sir" » "brian duncan sir", "a duncan sir", "innes duncan sir", "ian duncan i", "ian duncan sarah"

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 scott") OR ("ian duncan stone"))) OR ("ian duncan sir"))) OR ("jon duncan smith")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"ian duncan scott\") OR (\"ian duncan stone\"))) or (\"ian duncan sir\"))) or (\"jon duncan smith\"))".
• Removing quotes may allow a broader search: (((((( ian duncan scott ) OR ( ian duncan stone ))) or ( ian duncan sir ))) or ( jon duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (((((("ian duncan scott") OR ("ian duncan stone"))) or ("ian duncan sir"))) or ("jon duncan smith"))*.