Perhaps you should try some spelling variations:
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
de communication » mobile communication, online communication
developing areas » developing asia, developing east, developing a
4 developing » 3 developing
areas areas » areas arenas, seas areas, areas access
und deepen » und deren, und dessen, und denen
deepen de » deepen _, deep node
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 des informations und deepen de communication costs 4 developing areas areas.*.