Perhaps you should try some spelling variations:
"vieweg studium; grundkurs mathematik" » "vieweg studium; bruckenkurs mathematik", "vieweg studium; vorkurs mathematik", "vieweg studium; grundkurs informatik"
"viewed studium; grundkurs mathematik" » "viewed studium; bruckenkurs mathematik", "viewed studium; vorkurs mathematik", "viewed studium; grundkurs informatik", "reviewed studies; grundkurs mathematik"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"vieweg studium; grundkurs mathematik\") OR (((\"viewed studium; grundkurs mathematik\") OR (\"resolved studies; Grundkurs Mathematik\"))))".
• Removing quotes may allow a broader search: (( vieweg studium; grundkurs mathematik ) OR ((( viewed studium; grundkurs mathematik ) OR ( resolved studies; Grundkurs Mathematik )))).
• Adding a wildcard symbol may retrieve word variants: (("vieweg studium; grundkurs mathematik") OR ((("viewed studium; grundkurs mathematik") OR ("resolved studies; Grundkurs Mathematik"))))*.