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 henry j jan steenis" » "cornelis ginsberg henry l jan steenis" (Expand Search), "cornelis ginsberg henry d jan steenis" (Expand Search), "cornelis ginsberg henry h jan steenis" (Expand Search), "cornelis ginsberg henry j wan steenis" (Expand Search), "cornelis ginsberg henry j van steenis" (Expand Search), "cornelis ginsburg henry j 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 gerrit jan jan steenis") OR ("cornelis ginsberg henry j jan steenis"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cornelis gijsbert gerrit jan jan steenis\") OR (\"cornelis ginsberg henry j jan steenis\"))".
• Removing quotes may allow a broader search: (( cornelis gijsbert gerrit jan jan steenis ) OR ( cornelis ginsberg henry j jan steenis )).
• Adding a wildcard symbol may retrieve word variants: (("cornelis gijsbert gerrit jan jan steenis") OR ("cornelis ginsberg henry j jan steenis"))*.