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- » very.born.dt.ges.hno-, ver.born.dt.ges.hno-, verb.born.dt.ges.hno-, verh.born.dt.gets.hno-, verh.born.dt.gels.hno-, verh.born.dt.gems.hno-
vers.born.dt.gem.hno-heilkunde » verse.born.dt.gem.hno-heilkunde, very.born.dt.gem.hno-heilkunde, ver.born.dt.gem.hno-heilkunde, vers.born.dt.germ.hno-heilkunde
verso.born.dt.gem.hno-heilkunde » verseo.born.dt.gem.hno-heilkunde, veryo.born.dt.gem.hno-heilkunde, vero.born.dt.gem.hno-heilkunde, verso.born.dt.germ.hno-heilkunde, verse.born.dt.gem.hno-heilkunde

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 15.15) OR (heilkunde 5.1)) ) OR ( (vers.born.dt.gem.hno-heilkunde OR verso.born.dt.gem.hno-heilkunde) 15.15 )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( verh.born.dt.ges.hno-((heilkunde 15.15) OR (heilkunde 5.1)) ) or ( (vers.born.dt.gem.hno-heilkunde or verso.born.dt.gem.hno-heilkunde) 15.15 ))".
• Adding a wildcard symbol may retrieve word variants: (( verh.born.dt.ges.hno-((heilkunde 15.15) OR (heilkunde 5.1)) ) or ( (vers.born.dt.gem.hno-heilkunde or verso.born.dt.gem.hno-heilkunde) 15.15 ))*.