Perhaps you should try some spelling variations:
trough communication » through communication, thought communication, touch communication
technologies used » technologies based, technology used, technologies _
used information » user information, use information, based information
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
information 1 » information 2, information 3, information 3.2
each trough » search through, peace through, death through
de afrique » de l'afrique, en afrique, l afrique
1 each » _ each, 0 each

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

• Adding a wildcard symbol may retrieve word variants: technologies used information 1 each trough communication _ du developpement de afrique.*.