Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
den communication » open communication, lean communication, when communication
technologie und » technologies 2.1
und information » fund information, road information, award information
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
developing 1 » developing _, developing a, developing e
contents i » contents 1, contents _, contents list
cost 1.3 » cost 11.3, cost 1.2, cost 2.3
i den » _ den, i der, i en

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 den communication cost 1.3 developing 1 africa.*.