Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
information 5.2 » information 15.2, information 1.2, information 5.4
developing a » developing _
iot device » iot devices, iot service, iot services
a assets » _ assets, 2 assets, bad assets
5.2 iot » 5.2 ict, 5.3 iot, 5.4 iot

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

• Adding a wildcard symbol may retrieve word variants: technologien als information 5.2 iot device communication costs _ developing a assets.*.