Perhaps you should try some spelling variations:
ruhr » ruhe (Expand Search), nuhr (Expand Search), rohr (Expand Search)
moor » mohr (Expand Search)
mohn » sohn (Expand Search), hohn (Expand Search), john (Expand Search), mohne (Expand Search), msohn (Expand Search), mhohn (Expand Search)
bohn » bohne (Expand Search), bsohn (Expand Search), bhohn (Expand Search)
ohn » ohne (Expand Search), sohn (Expand Search), hohn (Expand Search)
shohn » shohne (Expand Search), shsohn (Expand Search), shhohn (Expand Search), sohn (Expand Search), hohn (Expand Search)
hbhbohn » hbhbohne (Expand Search), hbhbsohn (Expand Search), hbhbhohn (Expand Search)
sjjhohn » sjjhohne (Expand Search), sjjhsohn (Expand Search), sjjhhohn (Expand Search)
university » universitat (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: (ruhr OR ((moor OR (((bohn OR mohn) OR ohn) OR shohn)) OR (hbhbohn OR sjjhohn))) university bochum~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(ruhr OR ((moor OR (((bohn OR mohn) OR ohn) OR shohn)) OR (hbhbohn OR sjjhohn))) university bochum*".