Perhaps you should try some spelling variations:
"river davon, warwickshire" » "river avon, warwickshire", "rivers avon, warwickshire", "rivers david, warwickshire"
"myers david, warwickshire" » "powers david, warwickshire", "rogers david, warwickshire"

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: (("river davon, warwickshire") OR ("myers david, warwickshire")).
• Removing quotes may allow a broader search: (( river davon, warwickshire ) or ( myers david, warwickshire )).
• Adding a wildcard symbol may retrieve word variants: (("river davon, warwickshire") or ("myers david, warwickshire"))*.