Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
developpement zones » development zones, developpement des, development zone
information speed » information sheet, information needed, information needs
de developpement » sme development
communication 2 » communication _, communication a, communication 3
technologies 4 » technologies _
4 information » 2 information, 1 information
zones africa » rates africa, towns africa, works africa
2 de » 2 die, 2 der, _ de

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information speed _ verbal communication 2 de developpement zones africa.*.