Perhaps you should try some spelling variations:
"johann daniel von eck" » "johann daniel van eck", "johann daniel vi eck", "johann daniel v eck", "johann daniel von beck", "johann daniel von ecr"
"johann daniel von reck" » "johann daniel van reck", "johann daniel vi reck", "johann daniel v reck", "johann daniel von recht", "johann daniel von reach", "johann daniel von recha"

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: "((\"johann daniel von eck\") OR (\"johann daniel von reck\"))".
• Removing quotes may allow a broader search: (( johann daniel von eck ) OR ( johann daniel von reck )).
• Adding a wildcard symbol may retrieve word variants: (("johann daniel von eck") OR ("johann daniel von reck"))*.