Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
based communications » based communication, speed communications, aided communications
information context » information content, information contents, information centers
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
3.5 developing » 3.3 developing, 3.2 developing, 1.5 developing
context dna » context data, context do, context donath
dna based » dea based, doa based, na based
costs 3.5 » costs 4.2, costs 4.4, costs 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologien als information context dna based communications costs 3.5 developing _ africa.*.