Perhaps you should try some spelling variations:
technologies 2.1 » technologies _, technologies 4, technologies a
du developpement » de developpement, le developpement, et developpement
developpement la » developpement de, developpement et, developpement du
2.1 information » 3.1 information
4 communication » 3 communication, 5.4 communication, de communication
information do » information does, information der, information due
systems du » systems due, systems do, systems dr
la afrique » l afrique, la fabrique, en afrique
do dogs » do does
dogs 4 » dogs _, logs 4, dogs 2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information do dogs 4 communication systems du developpement la afrique.*.