Perhaps you should try some spelling variations:
"hughes griffith, mark griffiths" » "hughes griffith, mary griffiths", "hughes griffith, mrs griffiths", "hughes griffith, a griffiths"
"hugh griffiths, d griffiths" » "g griffiths, d griffiths", "nach griffiths, d griffiths", "hannah griffiths, d griffiths", "hugh 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: (("hughes griffith, mark griffiths") OR ("hugh griffiths, d griffiths"))*.
• Removing quotes may allow a broader search: (( hughes griffith, mark griffiths ) or ( hugh griffiths, d griffiths ))*.