Perhaps you should try some spelling variations:
"g griffiths, mrs griffiths" » "g griffiths, mrs griffith", "g griffiths, mark griffiths", "g griffiths, mary griffiths", "a griffiths, mrs griffiths", "e griffiths, mrs griffiths", "de griffiths, mrs griffiths"
"d griffiths, mrs griffiths" » "d griffiths, mrs griffith", "d griffiths, mark griffiths", "d griffiths, mary griffiths"
"_ griffiths, mrs griffiths" » "_ griffiths, mrs griffith", "_ griffiths, mark griffiths", "_ griffiths, mary griffiths", "_ griffith, mrs griffiths"

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: (("g griffiths, mrs griffiths") OR ((("d griffiths, mrs griffiths") OR ("_ griffiths, mrs griffiths")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"g griffiths, mrs griffiths\") or (((\"d griffiths, mrs griffiths\") OR (\"_ griffiths, mrs griffiths\"))))".
• Removing quotes may allow a broader search: (( g griffiths, mrs griffiths ) or ((( d griffiths, mrs griffiths ) OR ( _ griffiths, mrs griffiths )))).
• Adding a wildcard symbol may retrieve word variants: (("g griffiths, mrs griffiths") or ((("d griffiths, mrs griffiths") OR ("_ griffiths, mrs griffiths"))))*.