Perhaps you should try some spelling variations:
communications model » communications models, communication model, communicating model
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
information act » information age, information a, information about
per data » power data, poor data, user data
model du » model due, model d, model dal
act per » act der, act power, act part

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information act per data communications model du developpement de l'afrique.*.