Perhaps you should try some spelling variations:
mittelbare » unmittelbare, unmittelbaren
unununmittelbareee » ununununmittelbareee, ununununmittelbarenee
unmittelbareer » ununmittelbareer, ununmittelbarener, unmittelbarer, unmittelbareren, unmittelbare
ermittelbar » unmittelbar
mittelbis » mittelbaus, mittelbar, mittelbau

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