Perhaps you should try some spelling variations:
oral communication » personal communication
information cause » information case, information use, information classes
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
4 developing » 3 developing
cause de » causes de, cause _, cause a
de oral » de otras, new oral
costs 4 » costs _, costs a, costs 4.2

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien dis information cause de oral communication costs 4 developing _ access.*.