Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
information 2 » information 3
developing a » developing _
des mobile » does mobile, das mobile, less mobile
costs 2.3 » costs 4.2, costs 4.4
2 des » 2 der, 2 das, a des
a sea » _ sea, a set

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 2 des mobile communications costs 2.3 developing a sea.*.