Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4 communication » 3 communication, 5.4 communication, de communication
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing can » developing a, developing ai, developing av
contents 3.3 » contents 3.1, content 3.3, contexts 3.3
can africa » urban africa
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
3.3 4 » 3.3 _, 3.3 a, 3.3 e

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

• Adding a wildcard symbol may retrieve word variants: technologien des information contents 3.3 4 communication cost 2.2 developing can africa.*.