Perhaps you should try some spelling variations:
"g griffiths, mark griffiths" » "g griffiths, mary griffiths", "g griffiths, mrs griffiths", "g griffiths, a griffiths", "_ griffiths, mark griffiths", "a griffiths, mark griffiths", "e griffiths, mark griffiths"
"g griffiths, d griffiths" » "_ griffiths, d griffiths", "a griffiths, d griffiths", "e griffiths, d griffiths", "g griffiths, _ 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, mark griffiths") OR ("g griffiths, d griffiths")).
• Removing quotes may allow a broader search: (( g griffiths, mark griffiths ) or ( g griffiths, d griffiths )).
• Adding a wildcard symbol may retrieve word variants: (("g griffiths, mark griffiths") or ("g griffiths, d griffiths"))*.