Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
information centres » information centre, information centrism, information centers
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
2 developing » 3 developing, 4 developing, 2 development
developing a » developing _
a africa » 1 africa, can africa, em africa
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information centres _ verbal communication costs 2 developing a africa.*.