Perhaps you should try some spelling variations:
clean development » human development, urban development
technologies art » technologies part, technologies a, technologies bit
la communication » data communication, data communications
art information » party information, smart information, ct information
costs clean » costs clear
access et » access e, access fee, access ict
a afrique » l afrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies art information access et la communication costs clean development a afrique.*.