Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
laser informations » labor information, user information, der informations
techniques laser » techniques chapter, techniques a, techniques de
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
der mobile » der mobilen, der mobil, does mobile
costs 4 » costs _, costs a, costs 4.2
4 areas » 1 areas, 2 areas, 4 areal
und » fund

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

• Adding a wildcard symbol may retrieve word variants: techniques laser informations und der mobile communications costs 4 developing 4 areas.*.