Perhaps you should try some spelling variations:
"ian duncan scott" » "ian duncan scotus", "ian duncan stone", "a duncan scott", "jon duncan scott", "innes duncan scott"
"brian duncan smith" » "bruce duncan smith", "bra duncan smith", "brjon duncan smith", "brinnes duncan smith"
"brian duncan sarah" » "bruce duncan sarah", "brian duncan adam", "brian duncan gray", "brian duncan shaw", "bra duncan sarah", "brjon duncan sarah", "brinnes duncan sarah"
"brjon duncan sarah" » "brjon duncan adam", "brjon duncan gray", "brjon duncan shaw", "jon duncan sarah", "brown duncan sarah", "ron duncan sarah"
"ian duncan sir" » "a duncan sir", "jon duncan sir", "innes duncan sir", "ian duncan i"

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