Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications costs » communication costs, communications _
information 4.3.2 » information 4.3.3, information 2.3.2, information 3.2
technologien als » technologien des, technologien fur, technologien und
developing flows » developing cross, developing fluid, developing forms
als information » als informations, aids information, laws information
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 als information 4.3.2 _ voice communications costs 4 developing flows across.*.