Perhaps you should try some spelling variations:
universitat bochum » universitat bonn (Expand Search)
ruhe » truhe (Expand Search)
mohr » mehr (Expand Search), lohr (Expand Search), moor (Expand Search)
mohn » john (Expand Search), mahn (Expand Search), mohne (Expand Search), mjohn (Expand Search)
ohn » ohne (Expand Search), john (Expand Search)
sohn » sohne (Expand Search), sjohn (Expand Search)
bohn » bohne (Expand Search), bjohn (Expand Search)
hohn » hohne (Expand Search), hjohn (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: (ruhe OR ((mohr OR mohn) OR (((ohn OR sohn) OR bohn) OR hohn))) universitat bochum~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(ruhe OR ((mohr OR mohn) OR (((ohn OR sohn) OR bohn) OR hohn))) universitat bochum".
• Adding a wildcard symbol may retrieve word variants: (ruhe OR ((mohr OR mohn) OR (((ohn OR sohn) OR bohn) OR hohn))) universitat bochum*.