Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
development base » development based, development case, development cases
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
information 2 » information 3
base areas » basic areas, based areal, basin areas
costs a » costs _, costs 4
2 und » _ und, i und

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

• Adding a wildcard symbol may retrieve word variants: technologies a information 2 und mobile communications costs a development base areas.*.