Perhaps you should try some spelling variations:
engelhard » engelhardt (Expand Search), engelhorn (Expand Search)
ebehrhardt » eberhard (Expand Search), ebgerhardt (Expand Search)
eberhardt » ebgerhardt (Expand Search), ebgebhardt (Expand Search)
erhardt » gerhardt (Expand Search), gebhardt (Expand Search)
ehrhardt » gerhardt (Expand Search)
erhard » gerhard (Expand Search)
finckh » finck (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: (engelhard OR ((eberhardt OR ebehrhardt) OR ((erhardt OR ehrhardt) OR erhard))) finckh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(engelhard OR ((eberhardt OR ebehrhardt) OR ((erhardt OR ehrhardt) OR erhard))) finckh".
• Adding a wildcard symbol may retrieve word variants: (engelhard OR ((eberhardt OR ebehrhardt) OR ((erhardt OR ehrhardt) OR erhard))) finckh*.