Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
when face » when faced, en face, when base
1 when » 19 when, 3 when, 4 when
2 du » 2 zu, 2 de, 2 eu

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 when face communication 2 du developpement de l'afrique.*.