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