Perhaps you should try some spelling variations:
"brjon duncan gray" » "brian duncan gray", "jon duncan gray", "brown duncan gray", "brjon duncan green", "brjon duncan sarah"
"brjon duncan grant" » "brian duncan grant", "jon duncan grant", "brown duncan grant", "brjon duncan green", "brjon duncan jane"
"ian duncan sir" » "brian duncan sir", "a duncan sir", "jon 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 sir") OR ((("brjon duncan gray") OR ("brjon duncan grant"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"ian duncan sir\") or (((\"brjon duncan gray\") OR (\"brjon duncan grant\"))))*".
• Removing quotes may allow a broader search: (( ian duncan sir ) or ((( brjon duncan gray ) OR ( brjon duncan grant ))))*.