Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien als » technologien des, technologien fur, technologien und
de communication » mobile communication, online communication
als information » als informations, aids information, laws information
12 developing » 1.2 developing, 2 developing, 1 developing
cost 12 » cost 1.2, cost 15, cost 3.2
1 de » 1 die, 1 der, _ de
contents » context

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

• Adding a wildcard symbol may retrieve word variants: technologien als information contents 1 de communication cost 12 developing _ africa.*.