Perhaps you should try some spelling variations:
"richard clague shell" » "richard clarke shell", "richard clark shell", "richard clair shell", "richard cage shell", "richard closure shell", "richard plate shell"
"richard cloud shell" » "richard cour shell", "richard cox shell", "richard coeur shell"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"richard cloud shell\") OR (\"richard clague shell\"))".
• Removing quotes may allow a broader search: (( richard cloud shell ) OR ( richard clague shell )).
• Adding a wildcard symbol may retrieve word variants: (("richard cloud shell") OR ("richard clague shell"))*.