Perhaps you should try some spelling variations:
oral communication » personal communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information und » informations und
a developing » a development
und direct » und direkt, und direkte, used direct
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information und direct oral communication costs a developing _ areas.*.