Perhaps you should try some spelling variations:
"zinzendorf, nicola ludwig / graf von / 1700-1760" » "zinzendorf, nicolaus ludwig / graf von / 1700-1760", "zinzendorf, nikolaus ludwig / graf von / 1700-1760", "zinzendorf, nicola lewis / graf von / 1700-1760", "zinzendorf, nicola ludwig / graft von / 1700-1760", "zinzendorf, nicola ludwig / gray von / 1700-1760", "zinzendorf, nicola ludwig / gram von / 1700-1760"
"zinzendorf, nicola ludwig / graw von / 1700-1760" » "zinzendorf, nicolaus ludwig / graw von / 1700-1760", "zinzendorf, nikolaus ludwig / graw von / 1700-1760", "zinzendorf, nicola lewis / graw von / 1700-1760", "zinzendorf, nicola ludwig / grad von / 1700-1760", "zinzendorf, nicola ludwig / gral von / 1700-1760", "zinzendorf, nicola ludwig / graz von / 1700-1760"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"zinzendorf, nicola ludwig / graf von / 1700-1760\") OR (\"zinzendorf, nicola ludwig / graw von / 1700-1760\"))".
• Removing quotes may allow a broader search: (( zinzendorf, nicola ludwig / graf von / 1700-1760 ) OR ( zinzendorf, nicola ludwig / graw von / 1700-1760 )).
• Adding a wildcard symbol may retrieve word variants: (("zinzendorf, nicola ludwig / graf von / 1700-1760") OR ("zinzendorf, nicola ludwig / graw von / 1700-1760"))*.