Perhaps you should try some spelling variations:
"ruhr universitat bochum" » "der universitat bochum" (Expand Search)
"ruhr universitat bonn" » "der universitat bonn" (Expand Search), "ruhr universitat wien" (Expand Search), "ruhr universitat berlin" (Expand Search), "ruhr universitat zu" (Expand Search)
"mohr university bochum" » "mehr university bochum" (Expand Search), "lohr university bochum" (Expand Search), "mohn university bochum" (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: (("mohr university bochum") OR ((("ruhr universitat bochum") OR ("ruhr universitat bonn"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mohr university bochum\") OR (((\"ruhr universitat bochum\") OR (\"ruhr universitat bonn\"))))".
• Removing quotes may allow a broader search: (( mohr university bochum ) OR ((( ruhr universitat bochum ) OR ( ruhr universitat bonn )))).
• Adding a wildcard symbol may retrieve word variants: (("mohr university bochum") OR ((("ruhr universitat bochum") OR ("ruhr universitat bonn"))))*.