Perhaps you should try some spelling variations:
information centers » information contents, information officers
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
developing areas » developing asia, developing east, developing a
des information » des informations, does information, dis information
a developing » a development
areas areas » areas arenas, seas areas, areas access
centers a » centers _, center a, enters a
costs a » costs _, costs 4
a oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien des information centers a oral communication costs a developing areas areas.*.