Perhaps you should try some spelling variations:
hannah griffiths » annual griffiths, randall griffiths, alan griffiths
andrew griffiths » andrew griffin, matthew griffiths, randall griffiths
r.c griffiths » 6.3 griffiths, r griffiths, sic griffiths
teaching war » teaching what, teaching word, teaching web

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 ((((hannah griffiths) OR (r.c griffiths))) OR (andrew griffiths)) teaching war.
• Adding a wildcard symbol may retrieve word variants: john ((((hannah griffiths) or (r.c griffiths))) or (andrew griffiths)) teaching war*.