Perhaps you should try some spelling variations:
l140 developpement » le developpement, leur developpement, de developpement
data communication » data communications
developpement en » developpement et, developpement des, developpement de
networks l140 » networks 1
technology 2 » technology _, technology 1, technology 3
idrs data » aids data, das data, dhs data
3.2 idrs » 3.2 ids, 3.2 ipr, 3.2 irt

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

• Adding a wildcard symbol may retrieve word variants: technology 2 information 3.2 idrs data communication networks l140 developpement en afrique.*.