Perhaps you should try some spelling variations:
david griffiths » david griffith, david griffeath, davies griffith
dawn griffiths » ian griffiths, jayne griffiths, d griffiths
dan griffiths » ian griffiths, alan griffiths, d griffiths
born 1979 » born 1909, born 1919, born 1929

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: ((dan griffiths) OR (((dawn griffiths) OR (david griffiths)))) (rugby union, born 1979).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dan griffiths) or (((dawn griffiths) OR (david griffiths)))) (rugby union, born 1979)".
• Adding a wildcard symbol may retrieve word variants: ((dan griffiths) or (((dawn griffiths) OR (david griffiths)))) (rugby union, born 1979)*.