Perhaps you should try some spelling variations:
information centers » information contents, information officers
class communication » mass communication, plans communication, crisis communication
technologies 4 » technologies _
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
4 information » 2 information, 1 information
centers help » centers hold, centers real
developing a » developing _
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
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: technologies 4 information centers help class communication costs 2.2 developing a africa.*.