Perhaps you should try some spelling variations:
heilkunde 15.15 » heilkunde 11
heilkunde 5.1 » heilkunde 1, heilkunde 11, heilkunde 31
ver.born.dt.gens.hno-heilkunde » ever.born.dt.gens.hno-heilkunde, vier.born.dt.gens.hno-heilkunde, ver.born.dt.gene.hno-heilkunde, ver.born.dt.gen.hno-heilkunde, ver.born.dt.gent.hno-heilkunde
very.born.dt.ges.hno-heilkunde » every.born.dt.ges.hno-heilkunde, viery.born.dt.ges.hno-heilkunde, very.born.dt.gets.hno-heilkunde, very.born.dt.gels.hno-heilkunde
verh.born.dt.gems.hno- » everh.born.dt.gems.hno-, vierh.born.dt.gems.hno-, vers.born.dt.gems.hno-, verb.born.dt.gems.hno-, vera.born.dt.gems.hno-, verh.born.dt.gets.hno-, verh.born.dt.gels.hno-, verh.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: (( (ver.born.dt.gens.hno-heilkunde OR very.born.dt.ges.hno-heilkunde) 15.15 ) OR ( verh.born.dt.gems.hno-((heilkunde 15.15) OR (heilkunde 5.1)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (ver.born.dt.gens.hno-heilkunde or very.born.dt.ges.hno-heilkunde) 15.15 ) or ( verh.born.dt.gems.hno-((heilkunde 15.15) OR (heilkunde 5.1)) ))".
• Adding a wildcard symbol may retrieve word variants: (( (ver.born.dt.gens.hno-heilkunde or very.born.dt.ges.hno-heilkunde) 15.15 ) or ( verh.born.dt.gems.hno-((heilkunde 15.15) OR (heilkunde 5.1)) ))*.