Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
information based » information case, information bank, transformation based
technologie der » technologie de, technologien des, technologies de
der information » insider information, sector information, labor information
developing last » developing east, developing waste, developing based
last accessed » all accessed
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: technologie der information based _ device communication costs 4 developing last accessed.*.