Perhaps you should try some spelling variations:
"jean denis robinson" » "jean lewis robinson", "jean daniel robinson", "jean defoes robinson"
"can henry johnson" » "can henry robinson", "can henry john", "can henry jackson", "man henry johnson", "gan henry johnson", "tan henry johnson"
"can ben johnson" » "can john johnson", "can bend johnson", "cant ben johnson", "pan ben johnson"

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