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