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
developing areas » developing asia, developing east, developing a
information und » informations und
a developing » a development
areas areas » areas arenas, seas areas, areas access
die oral » die moral, die orte
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 die oral communication costs a developing areas areas.*.