Perhaps you should try some spelling variations:
related communications » related communication, mediated communications, related complications
communications costs » communication costs, communications _
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
costs des » costs fees

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

• Adding a wildcard symbol may retrieve word variants: methods overview social _ trade related communications costs des developpement de afrique.*.