Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
informations based » information based, informational basis, informationsphase 1
technologien und » technologie und, technologien des, technologien fur
und informations » und information, und informationen, fund information
3 developing » 3 development
developing e » developing _, developing a, developing east
based more » based core, based mode, based model
costs 3 » costs _, costs 4, costs a
e areal » _ areal, 2 areal, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologien und informations based more mobile communications costs 3 developing e areal.*.