Perhaps you should try some spelling variations:
"john dunning speke" » "john running speed", "john jennings speke", "john dunton speke", "john dennis speke"
"john running space" » "john running apache", "john running state", "john running spark", "john hanning space", "down running space", "john binning space"
"john dunning burke" » "john jennings burke", "john dunton burke", "john dennis burke"

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 dunning speke") OR ("john dunning burke"))) OR ("john running space")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"john dunning speke\") OR (\"john dunning burke\"))) or (\"john running space\"))".
• Removing quotes may allow a broader search: (((( john dunning speke ) OR ( john dunning burke ))) or ( john running space )).
• Adding a wildcard symbol may retrieve word variants: (((("john dunning speke") OR ("john dunning burke"))) or ("john running space"))*.