Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
technologies 4 » technologies _
4 information » 2 information, 1 information
information 2 » information 3
networks leur » networks learn, networks linear, networks neural
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 2 die _ communication networks leur developpement de afrique.*.