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