Perhaps you should try some spelling variations:
ruhr » ruhe (Expand Search), nuhr (Expand Search), rohr (Expand Search)
mohr » mehr (Expand Search), lohr (Expand Search), mohn (Expand Search)
mjohne » mjohnee (Expand Search), mjhohne (Expand Search), mjbohne (Expand Search)
ohn » ohne (Expand Search), hohn (Expand Search), bohn (Expand Search)
jhohne » jhohnee (Expand Search), jhhohne (Expand Search), jhbohne (Expand Search)
hbohn » hbohne (Expand Search), hbhohn (Expand Search), hbbohn (Expand Search), hohn (Expand Search), bohn (Expand Search)
bhohn » bhohne (Expand Search), bhhohn (Expand Search), bhbohn (Expand Search), hohn (Expand Search), bohn (Expand Search)
sohn » sohne (Expand Search), shohn (Expand Search), sbohn (Expand Search)
university » universitat (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 ((mjohne OR ohn) OR jhohne)) OR ((hbohn OR bhohn) OR sohn))) university bochum~".
• Adding a wildcard symbol may retrieve word variants: (ruhr OR ((mohr OR ((mjohne OR ohn) OR jhohne)) OR ((hbohn OR bhohn) OR sohn))) university bochum*.