Perhaps you should try some spelling variations:
"ian duncan sarah" » "ian duncan adam", "ian duncan gray", "ian duncan shaw", "brian duncan sarah", "a duncan sarah", "jon duncan sarah"
"brjon duncan m" » "brian duncan m", "jon duncan m", "brown duncan m", "brjon duncan _"
"brjon duncan m.d" » "brian duncan m.d", "jon duncan m.d", "brown duncan m.d", "brjon duncan _.d"

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