Perhaps you should try some spelling variations:
"teubner studierenden mathematische" » "teubner studierende mathematischer", "teubner studierenden theoretische", "teubner grundlegenden mathematischen", "eines studierenden mathematische", "unter studierenden mathematische", "meine studierenden mathematische"
"die studierenden mathematik" » "die studierende mathematischer", "der studierenden mathematik", "von studierenden 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: "((\"teubner studierenden mathematische\") OR (\"die studierenden mathematik\"))".
• Removing quotes may allow a broader search: (( teubner studierenden mathematische ) OR ( die studierenden mathematik )).
• Adding a wildcard symbol may retrieve word variants: (("teubner studierenden mathematische") OR ("die studierenden mathematik"))*.