Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications model » communications models, communication model, communicating model
integrating land » integrating a, integrated land, integrating data
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
4 integrating » _ integrating
technology 4 » technology _, technology 1, technology 3
model au » modele au, model a, model aa

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

• Adding a wildcard symbol may retrieve word variants: technology 4 integrating land _ voice communications model au developpement en afrique.*.