Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien der » technologien des, technologie der, technologien fur
de communication » mobile communication, online communication
der information » insider information, sector information, labor information
developing can » developing a, developing ai, developing av
3 developing » 3 development
can africa » urban africa
cost 3 » cost 3d, cost e3, cost _

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

• Adding a wildcard symbol may retrieve word variants: technologien der information contents _ de communication cost 3 developing can africa.*.