Perhaps you should try some spelling variations:
universitat bonn » universitat wien (Expand Search), universitat berlin (Expand Search), universitat zu (Expand Search)
mohn » sohn (Expand Search), bohn (Expand Search), mohr (Expand Search), msohn (Expand Search), mbohn (Expand Search)
ohn » sohn (Expand Search), bohn (Expand Search)
ohne » sohne (Expand Search), bohne (Expand Search)
hohn » hsohn (Expand Search), hbohn (Expand Search), hahn (Expand Search), sohn (Expand Search), huhn (Expand Search)
john » jsohn (Expand Search), jbohn (Expand Search), sohn (Expand Search), joh (Expand Search), bohn (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: (nuhr OR ((mohn OR ((mahn OR ohn) OR ohne)) OR ((hohn OR john) OR sjjoh))) universitat bonn~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(nuhr OR ((mohn OR ((mahn OR ohn) OR ohne)) OR ((hohn OR john) OR sjjoh))) universitat bonn*".