Perhaps you should try some spelling variations:
wireless communication » wireless communications, business communication
technologien od » technologien ad, technologien und, technologien _
information und » informations und
od information » d information, nd information, road information
die wireless » time wireless, via wireless, fixed wireless
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien od information und die wireless communication costs 4 developing _ areas.*.