Perhaps you should try some spelling variations:
technologien systems » technological systems, technology systems, technology system
systems information » systeme d'information, customs information, systems innovation
information content » information contents, information centers, information centre
4 communication » 3 communication, 5.4 communication, de communication
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
content does » context does, contexts does, content der
costs 1.3 » costs 12.3, costs 14.3, costs 15.3
does 4 » does _, does a, does e

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

• Adding a wildcard symbol may retrieve word variants: technologien systems information content does 4 communication costs 1.3 developing _ africa.*.