Perhaps you should try some spelling variations:
clean development » human development, urban development
information needs » information networks
how information » new information, 2 information, 1 information
technology how » technology 1, technology 2.2, technology 3
costs clean » costs clear
a afrique » l afrique, en afrique
needs de » needs men, needs one, needs _

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

• Adding a wildcard symbol may retrieve word variants: technology how information needs de _ communication costs clean development a afrique.*.