Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologie und » technologies 2.1
und information » fund information, road information, award information
developing data » developing a, developing asia, developing east
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
data africa » ratha african, intra africa, baga african
contents i » contents 1, contents _, contents list
i de » i die, i der, i den

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

• Adding a wildcard symbol may retrieve word variants: technologie und information contents i de communication cost 2.4 developing data africa.*.