Perhaps you should try some spelling variations:
mittelbar » mittelbare, unmittelbar, ermittelbar
ununmittelbare » ununmittelbaree, unununmittelbare, ununermittelbare, unmittelbare, unvermittelbare, unmittelbar
ermittelbare » ermittelbaree, erunmittelbare, erermittelbare, ermittelbar, unmittelbare, mittelbare
unmittelbareeee » unmittelbareeeee, ununmittelbareeee, unermittelbareeee, unmittelbare, unmittelbaren, unmittelbarer
mittelbisau » mittelbau, mittelbis

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 ((ununmittelbare OR ermittelbare) OR unmittelbareeee)) OR mittelbisau).
• Adding a wildcard symbol may retrieve word variants: ((mittelbar or ((ununmittelbare or ermittelbare) or unmittelbareeee)) or mittelbisau)*.