Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
15 developing » 1 developing, 5 developing, 10 developing
developing a » developing _
contents 3 » contents 1, contents _, contents i
3 mobile » _ mobile, a mobile, 2 mobile
a africa » 1 africa, can africa, em africa
cost 15 » cost 12, cost 5, cost 11.5

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information contents 3 mobile communication cost 15 developing a africa.*.