Perhaps you should try some spelling variations:
heilkunde 15.15 » heilkunde 5.1, heilkunde 11
heilkunde 31 » heilkunde 3, heilkunde 1, heilkunde 11
verh.been.dt.gel.hno-heilkunde » ver.been.dt.gel.hno-heilkunde, vers.been.dt.gel.hno-heilkunde, verb.been.dt.gel.hno-heilkunde

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: (( very.ben.dt.gel.hno-heilkunde 15.15 ) OR ( verh.been.dt.gel.hno-heilkunde 31 )).
• Adding a wildcard symbol may retrieve word variants: (( very.ben.dt.gel.hno-heilkunde 15.15 ) or ( verh.been.dt.gel.hno-heilkunde 31 ))*.