Perhaps you should try some spelling variations:
power communication » your communication, fiber communication, better communication
communication model » communication media
du developpement » de developpement, le developpement, et developpement
developpement la » developpement de, developpement et, developpement du
technologies 2 » technologies _, technologies 4
la afrique » l afrique, la fabrique, en afrique
hts power » its power, fits power, gas power
model du » model due, model d, model dal
3.2 hts » 3.2 hgsc, 3.2 hptf

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 3.2 hts power communication model du developpement la afrique.*.