Perhaps you should try some spelling variations:
allgemeiner » allgemeinen, allgemeines
allgemeinerenes » allgemeinenenes, allgemeinesenes, allgemeineren, allgemeineres, allgemeinere
allgemeineere » allgemeinere, allgemeineren, allgemeinerer

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