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

• Performing a fuzzy search may retrieve terms with similar spellings: (ruhe OR ((rohr OR ruhr) OR lohr)) university bochum~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(ruhe OR ((rohr OR ruhr) OR lohr)) university bochum".
• Adding a wildcard symbol may retrieve word variants: (ruhe OR ((rohr OR ruhr) OR lohr)) university bochum*.