Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien road » technologien ad, technologien und, technologien am
de communication » mobile communication, online communication
contents 3.8 » contents 3.1, contents 3.2, contents 5.1
5 developing » 3 developing, 4 developing, 2 developing
developing 1 » developing _, developing a, developing e
3.8 de » 3.8 der, 3.8 die
cost 5 » cost 15, cost _, cost 4

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

• Adding a wildcard symbol may retrieve word variants: technologien road information contents 3.8 de communication cost 5 developing 1 africa.*.