Perhaps you should try some spelling variations:
china communications » china communication, china's communications, chile communications
adoption diffusion » advection diffusion, education diffusion, reaction diffusion
der developpement » de developpement, des developpements, leur developpement
communications 2 » communications _, communications a, communications 5
developpement l » developpement il, developpement la, developpement de
diffusion can » diffusion von, diffusion a, diffusion cir
l afrique » en afrique
de china » ke china, d china, code china
can de » can do, can code, can deal
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technology adoption diffusion can de china communications 2 der developpement l afrique.*.