Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
case information » care information, based information, phase information
techniques case » techniques laser, techniques based, techniques cost
information und » informations und
3.5 developing » 3.3 developing, 3.2 developing, 1.5 developing
developing a » developing _
de mobile » die mobile, e mobile, does mobile
costs 3.5 » costs 4.2, costs 4.4, costs 2.3
a areas » 1 areas, 2 areas, 4 areas
und de » und der, und des, und den

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

• Adding a wildcard symbol may retrieve word variants: techniques case information und de mobile communications costs 3.5 developing a areas.*.