Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
12.3 developing » 1.3 developing, 12.4 developing, 2.3 developing
technologien 2 » technologies 2, technologien _, technologien 1
contents from » content from, context from, comments from
developing 1 » developing _, developing a, developing e
costs 12.3 » costs 2.3, costs 12.4, costs 14.3
from de » from dem, from deep

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information contents from de communication costs 12.3 developing 1 africa.*.