Perhaps you should try some spelling variations:
"dscornelis gilbert gerrit jan van steenis" » "dscornelis gilbert gerrit jan van steensel" (Expand Search), "dscornelis gilbert geert jan van steenis" (Expand Search), "dscornelis gilbert gerrit janse van steenis" (Expand Search), "dscornelis gilbert gerrit dang van steenis" (Expand Search), "dscornelis gilbert gerrit tang van steenis" (Expand Search), "dscornelius gilbert gerrit jan van steenis" (Expand Search), "dscornelia gilbert gerrit jan van steenis" (Expand Search), "dscorners gilbert gerrit jan van steenis" (Expand Search)
"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), "cornelius gijsbert gerrit jan jan steenis" (Expand Search), "cornelia gijsbert gerrit jan jan steenis" (Expand Search), "corners gijsbert gerrit jan jan steenis" (Expand Search), "cornelis 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 gijsbert gerrit jan jan steenis") OR ("dscornelis gilbert gerrit jan van steenis"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cornelis gijsbert gerrit jan jan steenis\") OR (\"dscornelis gilbert gerrit jan van steenis\"))*".
• Removing quotes may allow a broader search: (( cornelis gijsbert gerrit jan jan steenis ) OR ( dscornelis gilbert gerrit jan van steenis ))*.