Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications model » communications models, communication model, communicating model
integrating data » integration data, integrated data, integrating a
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
1 integrating » 10 integrating, _ integrating, 4 integrating
technology 1 » technology _
model du » model due, model d, model dal

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

• Adding a wildcard symbol may retrieve word variants: technology 1 integrating data _ voice communications model du developpement en afrique.*.