Perhaps you should try some spelling variations:
mutual communication » cultural communication, virtual communication, natural communication
technologies aids » technologies varies, technologies a, technologies de
information speed » information sheet, information needed, information needs
les developpement » le developpement, des developpements, leur developpement
aids information » chandos information, series information
developpement de » developpement des, developpement durable
de africa » does africa, de america, use africa
speed 1 » speed 10, speed _, speed 4

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

• Adding a wildcard symbol may retrieve word variants: technologies aids information speed 1 mutual communication _ les developpement de africa.*.