Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
e communication » de communication, 1 communication, une communication
u.s developing » funds developing, rules developing, slums developing
developing a » developing _
contents 12 » contents 1, contents 19, contents 12.1
a africa » 1 africa, can africa, em africa
12 e » 12 et, 12 _, 12 a

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

• Adding a wildcard symbol may retrieve word variants: technologien des information contents 12 e communication costa u.s developing a africa.*.