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
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing em » developing e, developing eq, developing amp
contents 3 » contents 1, contents _, contents i
em africa » 1 africa
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
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: technologie und information contents 3 de communication cost 2.3 developing em africa.*.