Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information costs » information contents, information centers, information content
de communication » mobile communication, online communication
3 developing » 3 development
developing a » developing _
costs des » costs fees
a areas » 1 areas, 2 areas, 4 areas
des de » des dem, des der, des des
cost 3 » cost 3d, cost e3, cost _

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information costs des de communication cost 3 developing a areas.*.