Perhaps you should try some spelling variations:
developpement economiques » developpement economique (Expand Search)
organisation des » organizacion de (Expand Search), organizacion del (Expand Search), organisation _ (Expand Search)
de developpement » _ development (Expand Search)
des cooperation » de cooperation (Expand Search), et cooperation (Expand Search), _ cooperation (Expand Search)
cooperation et » cooperation en (Expand Search), cooperation egtc (Expand Search), cooperation des (Expand Search)