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
developing ai » developing a, developing av, developing asia
5 developing » 3 developing, 4 developing, 2 developing
contents 3 » contents 1, contents _, contents i
ai africa » ii africa, can africa, 1 africa
3 mobile » _ mobile, a mobile, 2 mobile
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 dis information contents 3 mobile communication cost 5 developing ai africa.*.