Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
developpement de » developpement des, developpement durable
technologies 1 » technologies _, technologies 4, technologies 2
centers age » center stage, centers case, centers a
de afrique » de l'afrique, en afrique, l afrique
age data » wage data, cge data, image data

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information centers age data communications costs _ developpement de afrique.*.