Perhaps you should try some spelling variations:
informations centers » information centers, information center, information centre
11.7.4 developing » 1.6.4 developing, 1.4 developing, 12.4 developing
de communication » mobile communication, online communication
technologien 3 » technologies 3, technologien _, technologie 3
3 informations » 3 information, 2 informations, 4 informations
costs 11.7.4 » costs 11.3.2, costs 11.4, costs 11.3.1.4
developing e » developing _, developing a, developing east
e africa » em africa, de africa, eu africa

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

• Adding a wildcard symbol may retrieve word variants: technologien 3 informations centers _ de communication costs 11.7.4 developing e africa.*.