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