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
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
developing a » developing _
costs 12.3 » costs 2.3, costs 12.4, costs 14.3
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technology 3 information contents _ de communication costs 12.3 developing a africa.*.