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