Perhaps you should try some spelling variations:
sign communication » open communication, human communication, 3 communication
communication mode » communication model, communication modes, communication module
de developpement » sme development
developpement de » developpement des, developpement durable
technologies 1 » technologies _, technologies 4, technologies 2
de afrique » de l'afrique, en afrique, l afrique
mode de » modes de, modele de
1 sign » 13 sign, _ sign, a sign
law 1 » law _, law a

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information law 1 sign communication mode de developpement de afrique.*.