Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
some developpement » sme development, de developpement, le developpement
developpement de » developpement des, developpement durable
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
gap de » gap die, cap de, gap d

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

• Adding a wildcard symbol may retrieve word variants: technologies a information gap de _ communication cost some developpement de afrique.*.