Perhaps you should try some spelling variations:
"vers.been.dt.gets.hno-heilkunde 1991" » "vers.been.dt.gets.hno-heilkunde 11", "vers.been.dt.gets.hno-heilkunde 15.15", "vers.been.dt.gets.hno-heilkunde 1", "verse.been.dt.gets.hno-heilkunde 1991", "verso.been.dt.gets.hno-heilkunde 1991", "very.been.dt.gets.hno-heilkunde 1991", "vers.been.dt.get.hno-heilkunde 1991"
"verh.bern.dt.gold.hno-heilkunde 10" » "verh.bern.dt.gold.hno-heilkunde 1", "verh.bern.dt.gold.hno-heilkunde 11", "verh.bern.dt.gold.hno-heilkunde 16", "very.bern.dt.gold.hno-heilkunde 10", "ver.bern.dt.gold.hno-heilkunde 10", "verb.bern.dt.gold.hno-heilkunde 10", "verh.born.dt.gold.hno-heilkunde 10", "verh.ben.dt.gold.hno-heilkunde 10", "verh.bern.dt.good.hno-heilkunde 10", "verh.bern.dt.god.hno-heilkunde 10"

Try widening your search to All Fields.

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.gold.hno-heilkunde 10") OR ("vers.been.dt.gets.hno-heilkunde 1991")).
• Removing quotes may allow a broader search: (( verh.bern.dt.gold.hno-heilkunde 10 ) or ( vers.been.dt.gets.hno-heilkunde 1991 )).
• Adding a wildcard symbol may retrieve word variants: (("verh.bern.dt.gold.hno-heilkunde 10") or ("vers.been.dt.gets.hno-heilkunde 1991"))*.