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

• Performing a fuzzy search may retrieve terms with similar spellings: (("operation sache") OR ("operation nachts"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"operation sache\") OR (\"operation nachts\"))*".
• Removing quotes may allow a broader search: (( operation sache ) OR ( operation nachts ))*.