Perhaps you should try some spelling variations:
level communication » level communications, cell communication, event communication
technologies based » technologies used, technology based, technologies a
based information » basic information, based innovation, land information
die developpement » de developpement, le developpement, du developpement
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
has level » gas levels, has ever, has never
3.2 has » 3.2 hts, 3.2 phase, 6.3.2 has
a die » 2 die, 3 die, _ die

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

• Adding a wildcard symbol may retrieve word variants: technologies based information 3.2 has level communication a die developpement de afrique.*.