Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologien from » technologies from, technology from, technologien fur
informal contents » information contents, informal payments, informal control
developing use » developing e, developing ce, developing csi
4 developing » 3 developing
contents le » contents je, contents lead, contents less
le data » e data, file data, age data
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien from informal contents le data communications costs 4 developing use africa.*.