Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
technologien a » technologien am, technologien ad, technologien _
a information » 2 information, 1 information
developing 1 » developing _, developing a, developing e
contents 3 » contents 1, contents _, contents i
cost 12.4 » coast 12.4, costs 12.4, cost 2.4
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technologien a information contents 3 de communication cost 12.4 developing 1 africa.*.