Perhaps you should try some spelling variations:
information functions » information function, information frictions, information auctions
ley communication » grey communication, de communication, why communication
communication pt » communication 3, communication 1, communication 2
a developpement » au developpement, de developpement, le developpement
technologies 2 » technologies _, technologies 4
des afrique » en afrique, de l'afrique
pt a » pt 2, pt 1, pt 3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information functions _ ley communication pt a developpement des afrique.*.