Perhaps you should try some spelling variations:
strassburg university » strassburg universitats, augsburg university, bloomsburg university
salzburg university » aalborg university, hamburg university, seeburg university
tilburg university » aalborg university, edinburgh university, heidelberg university

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((strassburg university) OR (salzburg university))) OR (tilburg university)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((strassburg university) OR (salzburg university))) or (tilburg university))".
• Adding a wildcard symbol may retrieve word variants: ((((strassburg university) OR (salzburg university))) or (tilburg university))*.