Possibly a duplicate of this thread, but well, this service can’t find my street/house.
“Donauschwabenring” gives 0 results
“Donauschwabenring 34” gives 5 wrong results, but which are close
“Donauschwabenring 34, Mering” gives just Mering the town as result, which is unexpected and wrong in my opinion.
Nominatim finds it just right: https://nominatim.openstreetmap.org/search.php?q=donauschwabenring+34&polygon_geojson=1&viewbox=
I tried using Pelias at https://geocode.earth/ and it finds the correct position too.