Perhaps you should try some spelling variations:
level communication » level communications, cell communication, event communication
based information » basic information, based innovation, land information
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
has level » gas levels, has ever, has never
3.2 has » 3.2 hts, 3.2 phase, 6.3.2 has
a de » a die, a der, a des

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

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