Perhaps you should try some spelling variations:
grey communication » de communication, why communication, way communication
technologie der » technologie de, technologien des, technologies de
der information » insider information, sector information, labor information
developing east » development east, developing a, developing asia
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
contents 13 » contents 1, contents 19, contents 1.1
east africa » west africa
costs 1.3 » costs 12.3, costs 14.3, costs 15.3
13 grey » 3 grey, 13 great, 13 greek

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

• Adding a wildcard symbol may retrieve word variants: technologie der information contents 13 grey communication costs 1.3 developing east africa.*.