Perhaps you should try some spelling variations:
heilkunde 15.15 » heilkunde 5.1, heilkunde 11
heilkunde 1 » heilkunde 10, heilkunde 11, heilkunde 16
verh.bern.dt.gel.hno- » very.bern.dt.gel.hno-, ver.bern.dt.gel.hno-, vers.bern.dt.gel.hno-, verh.been.dt.gel.hno-, verh.born.dt.gel.hno-, verh.ben.dt.gel.hno-

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: verh.bern.dt.gel.hno-((heilkunde 15.15) OR (heilkunde 1)).
• Adding a wildcard symbol may retrieve word variants: verh.bern.dt.gel.hno-((heilkunde 15.15) or (heilkunde 1))*.