Perhaps you should try some spelling variations:
nicolas ludwig » nicolaus ludwig, nikolaus ludwig, nicolas lewis
array von » arrays von
grayt von » granit von, gray con
gramt von » granit von, graf von, grade von
gray von » gray con, gray box, gray dot

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( zinzendorf, nicolas ludwig <((gray von) OR (array von)), 1700-1760> ) OR ((( zinzendorf, nicolas ludwig <grayt von, 1700-1760> ) OR ( zinzendorf, nicolas ludwig <gramt von, 1700-1760> )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( zinzendorf, nicolas ludwig <((gray von) OR (array von)), 1700-1760> ) or ((( zinzendorf, nicolas ludwig <grayt von, 1700-1760> ) or ( zinzendorf, nicolas ludwig <gramt von, 1700-1760> ))))".
• Adding a wildcard symbol may retrieve word variants: (( zinzendorf, nicolas ludwig <((gray von) OR (array von)), 1700-1760> ) or ((( zinzendorf, nicolas ludwig <grayt von, 1700-1760> ) or ( zinzendorf, nicolas ludwig <gramt von, 1700-1760> ))))*.