Perhaps you should try some spelling variations:
"cornelis gijsbert gerrit janse van steenis" » "cornelis gijsbert gerrit janse jan steenis" (Expand Search), "cornelis ginsberg gerrit janse van steenis" (Expand Search)
"cornelis gilbert gerrit dang van steensel" » "cornelis gilbert gerrit dang fan steensel" (Expand Search), "cornelis gilbert gerrit tang van steensel" (Expand Search), "cornelis gilbert gerrit dang dang steensel" (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 dang van steensel") OR ("cornelis gijsbert gerrit janse van steenis"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cornelis gilbert gerrit dang van steensel\") OR (\"cornelis gijsbert gerrit janse van steenis\"))".
• Removing quotes may allow a broader search: (( cornelis gilbert gerrit dang van steensel ) OR ( cornelis gijsbert gerrit janse van steenis )).
• Adding a wildcard symbol may retrieve word variants: (("cornelis gilbert gerrit dang van steensel") OR ("cornelis gijsbert gerrit janse van steenis"))*.