Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
developing areas » developing asia, developing east, developing a
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
a developing » a development
areas arenas » areas trends, seas areas
costs a » costs 4

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

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