Perhaps you should try some spelling variations:
human developpement » human development, human developments, un developpement
data communication » data communications
information costs » information contents, information centers, information content
developpement en » developpement et, developpement des, developpement de
technologie 1 » technologies 1, technologien 1, technologie c
costs case » costs cash
case data » cases data, base data, use data

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

• Adding a wildcard symbol may retrieve word variants: technologie 1 information costs case data communication _ human developpement en afrique.*.