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