Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien ad » technologien am, technologien und, technologien als
1 communication » 10 communication, 3 communication, 4 communication
ad information » d information, nd information, od information
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
developing av » developing a, developing ai, developing amp
contents 1.3 » contents 1.1, contents 2.3, contexts 1.3
av africa » v africa, iv africa, can africa
1.3 1 » 1.3 _, 1.3 a, 1.3 2

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information contents 1.3 1 communication cost 2.4 developing av africa.*.