Perhaps you should try some spelling variations:
"can denis robinson" » "can daniel robinson", "can defoes robinson", "can henry robinson", "chan denise robinson", "jean denis robinson", "can dense robinson"
"can deny johnson" » "can henry johnson", "can penny johnson", "can ben johnson"
"can lewis robinson" » "can leis robinson", "cass lewis robinson", "5ann lewis robinson"

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: (((("can denis robinson") OR ("can lewis robinson"))) OR ("can deny johnson")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"can denis robinson\") OR (\"can lewis robinson\"))) or (\"can deny johnson\"))".
• Removing quotes may allow a broader search: (((( can denis robinson ) OR ( can lewis robinson ))) or ( can deny johnson )).
• Adding a wildcard symbol may retrieve word variants: (((("can denis robinson") OR ("can lewis robinson"))) or ("can deny johnson"))*.