Perhaps you should try some spelling variations:
"cornelius gijsbert gerrit janse van steenis" » "cornelius gijsbert gerrit janse van steensel" (Expand Search), "cornelius gijsbert geert janse van steenis" (Expand Search), "cornelius gijsbert gerrit janse jan steenis" (Expand Search), "cornelius ginsberg gerrit janse van steenis" (Expand Search)
"cornelius gilbert gerrit jan jan steenis" » "cornelius gilbert geert jan jan steenis" (Expand Search), "cornelius gilbert gerrit janse jan steenis" (Expand Search), "cornelius gilbert gerrit jang jae steenis" (Expand Search), "cornelius gilbert gerrit kuan jan steenis" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("cornelius gilbert gerrit jan jan steenis") OR ("cornelius gijsbert gerrit janse van steenis"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cornelius gilbert gerrit jan jan steenis\") OR (\"cornelius gijsbert gerrit janse van steenis\"))".
• Removing quotes may allow a broader search: (( cornelius gilbert gerrit jan jan steenis ) OR ( cornelius gijsbert gerrit janse van steenis )).
• Adding a wildcard symbol may retrieve word variants: (("cornelius gilbert gerrit jan jan steenis") OR ("cornelius gijsbert gerrit janse van steenis"))*.