Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications costs » communication costs, communications _
des transformation » des transformations, der transformation, de transformation
technologien des » technologien fur, technologien und, technologies 2
transformation 1 » transformation _, transformation a, transformation 3
developing east » development east, developing a, developing asia
east accessed » last accessed, east successes, all accessed
4 developing » 3 developing
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 transformation 1 _ voice communications costs 4 developing east accessed.*.