How to map the most "similar" strings from one list to another in python?

Given are two lists containing strings.

1. One contains the name of organisations (mostly universitys) all around the world - not only written in english but always using latin alphabet.

2. The other list contains mostly full addresses in which strings (organisations) from the first list may occur.

An Example:

addresses = [
             "Department of Computer Science, Katholieke Universiteit Leuven, Leuven, Belgium",
             "Machine Learning and Computational Biology Research Group, Max Planck Institutes     Tübingen, Tübingen, Germany 72076",
             "Department of Computer Science and Engineering, University of Washington, Seattle, USA 98185",
             "Knowledge Discovery Department, Fraunhofer IAIS, Sankt Augustin, Germany 53754",    
             "Computer Science Department, University of California, Santa Barbara, USA 93106",
             "Fraunhofer IAIS, Sankt Augustin, Germany",
             "Department of Computer Science, Cornell University, Ithaca, NY",
             "University of Wisconsin-Madison"
            ]

organisations = [
                 "Catholic University of Leuven"
                 "Fraunhofer IAIS"
                 "Cornell University of Ithaca"
                 "Tübingener Max Plank Institut"
                ]

As you can see the desired mapping would be:

"Department of Computer Science, Katholieke Universiteit Leuven, Leuven, Belgium",
--> Catholic University of  Leuven
"Machine Learning and Computational Biology Research Group, Max Planck Institutes     Tübingen, Tübingen, Germany 72076",
--> Max Plank Institut Tübingen
"Department of Computer Science and Engineering, University of Washington, Seattle, USA 98185",
--> --
"Knowledge Discovery Department, Fraunhofer IAIS, Sankt Augustin, Germany 53754",
--> Fraunhofer IAIS 
"Computer Science Department, University of California, Santa Barbara, USA 93106",
"Fraunh