Perhaps you should try some spelling variations:
allgemein » allgemeines, allgemeiner
allgemeinene » allgemeinesene, allgemeinerene, allgemeinenen, allgemeinere, allgemeinne
allgemeinen » allgemeinesen, allgemeineren
allgemeine » allgemeinese, allgemeinere

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 (allgemein OR (allgemeinene OR (allgemeinen OR allgemeine)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bildung (allgemein or (allgemeinene or (allgemeinen OR allgemeine)))*".