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
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
developing a » developing _
due mobile » die mobile, does mobile, auf mobile
costs 4.4 » costs 4.2
und due » fund due, und de, und dauer
a areas » 1 areas, 2 areas, 4 areas

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 due mobile communications costs 4.4 developing a areas.*.