Perhaps you should try some spelling variations:
mittelbar » unmittelbar, unmittelbare
ermittelbar » erunmittelbar, erunmittelbare, unmittelbar
unununmittelbareee » ununununmittelbareee, ununununmittelbareeee, ununununmittelbarenee
unununmittelbarener » ununununmittelbarener, ununununmittelbareener, ununununmittelbarenner
mittelbare » unmittelbare, unmittelbaree, unmittelbaren

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: ((mittelbar OR (ermittelbar OR (unununmittelbareee OR unununmittelbarener))) OR mittelbare).
• Adding a wildcard symbol may retrieve word variants: ((mittelbar or (ermittelbar or (unununmittelbareee or unununmittelbarener))) or mittelbare)*.