Perhaps you should try some spelling variations:
universitat bochum » universitat bonn (Expand Search)
ruhr » ruhe (Expand Search), nuhr (Expand Search), rohr (Expand Search)
mohr » mehr (Expand Search), lohr (Expand Search), moor (Expand Search)
mohn » sohn (Expand Search), hohn (Expand Search), bohn (Expand Search), mohne (Expand Search), msohn (Expand Search), mhohn (Expand Search)
ohn » ohne (Expand Search), sohn (Expand Search), hohn (Expand Search)
john » johne (Expand Search), jsohn (Expand Search), jhohn (Expand Search), sohn (Expand Search), joh (Expand Search), hohn (Expand Search)
hbshohn » hbshohne (Expand Search), hbshsohn (Expand Search), hbshhohn (Expand Search)
ssohne » ssohnee (Expand Search), sssohne (Expand Search), sshohne (Expand Search), sohne (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(ruhr OR ((mohr OR ((mohn OR ohn) OR john)) OR ((hbshohn OR huhn) OR ssohne))) universitat bochum~".
• Adding a wildcard symbol may retrieve word variants: (ruhr OR ((mohr OR ((mohn OR ohn) OR john)) OR ((hbshohn OR huhn) OR ssohne))) universitat bochum*.