Perhaps you should try some spelling variations:
"cornelis gijsbert gerrit janse van steenis" » "cornelis gijsbert gerrit janse van steensel" (Expand Search), "cornelis gijsbert gerrit janse jan steenis" (Expand Search), "cornelis ginsberg gerrit janse van steenis" (Expand Search)
"cornelis gilbert gerrit janse van steenis" » "cornelis gilbert gerrit janse van steensel" (Expand Search), "cornelis gilbert gerrit janse 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: (("cornelis gijsbert gerrit janse van steenis") OR ("cornelis gilbert gerrit janse van steenis"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cornelis gijsbert gerrit janse van steenis\") OR (\"cornelis gilbert gerrit janse van steenis\"))".
• Removing quotes may allow a broader search: (( cornelis gijsbert gerrit janse van steenis ) OR ( cornelis gilbert gerrit janse van steenis )).
• Adding a wildcard symbol may retrieve word variants: (("cornelis gijsbert gerrit janse van steenis") OR ("cornelis gilbert gerrit janse van steenis"))*.