Perhaps you should try some spelling variations:
john griffiths » john griffith, john griffin, von griffith
owen griffiths » green griffiths, roger griffiths, de griffiths
col griffiths » bob griffiths, l griffiths, tom griffiths
dot griffiths » d griffiths, de griffiths, bob 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: ((((john griffiths) OR (owen griffiths))) OR (((col griffiths) OR (dot griffiths)))).
• Adding a wildcard symbol may retrieve word variants: ((((john griffiths) or (owen griffiths))) or (((col griffiths) or (dot griffiths))))*.