Perhaps you should try some spelling variations:
heilkunde 15.15 » heilkunde 11
heilkunde 5.1 » heilkunde 1, heilkunde 11, heilkunde 31
verh.born.dt.ges.hno-heilkunde » ver.born.dt.ges.hno-heilkunde, vers.born.dt.ges.hno-heilkunde, verb.born.dt.ges.hno-heilkunde, verh.born.dt.gels.hno-heilkunde, verh.born.dt.gens.hno-heilkunde
verh.born.dt.gets.hno-heilkunde » ver.born.dt.gets.hno-heilkunde, vers.born.dt.gets.hno-heilkunde, verb.born.dt.gets.hno-heilkunde, verh.born.dt.get.hno-heilkunde
very.born.dt.gems.hno- » very.born.dt.gels.hno-, very.born.dt.gem.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.born.dt.ges.hno-heilkunde OR verh.born.dt.gets.hno-heilkunde) 15.15 ) OR ( very.born.dt.gems.hno-((heilkunde 15.15) OR (heilkunde 5.1)) )).
• Adding a wildcard symbol may retrieve word variants: (( (verh.born.dt.ges.hno-heilkunde or verh.born.dt.gets.hno-heilkunde) 15.15 ) or ( very.born.dt.gems.hno-((heilkunde 15.15) or (heilkunde 5.1)) ))*.