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

• Performing a fuzzy search may retrieve terms with similar spellings: (("reinhard dietrich") OR ("reinhard friedrich"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"reinhard dietrich\") OR (\"reinhard friedrich\"))".
• Removing quotes may allow a broader search: (( reinhard dietrich ) OR ( reinhard friedrich )).
• Adding a wildcard symbol may retrieve word variants: (("reinhard dietrich") OR ("reinhard friedrich"))*.