Perhaps you should try some spelling variations:
allgemeinesenen » allgemeinenen, allgemeineren, allgemeinsten
allgemeineser » allgemeinerer, allgemeines, allgemeiner
allgemeineere » allgemeinere, allgemeiner, allgemeineren

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: bildung (allgemeine OR (allgemeinesenen OR (allgemeineser OR allgemeineere))).
• Adding a wildcard symbol may retrieve word variants: bildung (allgemeine or (allgemeinesenen or (allgemeineser or allgemeineere)))*.