Perhaps you should try some spelling variations:
emitter communication » matter communication, twitter communication, written communication
technologies used » technologies based, technology used, technologies _
des developpement » des developpements, de developpement, le developpement
used information » user information, use information, based information
developpement en » developpement et, developpement des, developpement de
information 3 » information 2
3 gas » _ gas, 2 gas
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: technologies used information 3 gas emitter communication a des developpement en afrique.*.