Perhaps you should try some spelling variations:
heilkunde 110 » heilkunde 10, heilkunde 1, heilkunde 16
heilkunde 11 » heilkunde 1, heilkunde 10, heilkunde 16
vers.been.dt.geld.hno- » verse.been.dt.geld.hno-, verso.been.dt.geld.hno-, very.been.dt.geld.hno-, vers.been.dt.gold.hno-, vers.been.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: vers.been.dt.geld.hno-((heilkunde 11) OR (heilkunde 110)).
• Adding a wildcard symbol may retrieve word variants: vers.been.dt.geld.hno-((heilkunde 11) or (heilkunde 110))*.