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