Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologien nd » technologien und, technologien ad, technologie und
nd information » und information, d information, od information
15 developing » 1 developing, 5 developing, 10 developing
developing ai » developing a, developing av, developing asia
contents 3 » contents 1, contents _, contents i
ai africa » ii africa, can africa, 1 africa
cost 15 » cost 12, cost 5, cost 11.5
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 nd information contents 3 de communication cost 15 developing ai africa.*.