Perhaps you should try some spelling variations:
"john hanning sven" » "john dunning sven", "john jennings sven", "john rannie sven"
"john hawkins sven" » "john hopkins sven", "john hawkins sue", "john hawkins john", "john hawkins s.j"
"john harding sven" » "john chardin sven", "john gardiner sven", "john spalding sven", "john harding sue", "john hering sven", "john harding allen"

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 hanning sven") OR ("john hawkins sven"))) OR ("john harding sven")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"john hanning sven\") OR (\"john hawkins sven\"))) or (\"john harding sven\"))".
• Removing quotes may allow a broader search: (((( john hanning sven ) OR ( john hawkins sven ))) or ( john harding sven )).
• Adding a wildcard symbol may retrieve word variants: (((("john hanning sven") OR ("john hawkins sven"))) or ("john harding sven"))*.