Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
connecting water » conserving water, conveying water, connecting cities
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
technologies 4 » technologies _
4 connecting » _ connecting, 2 connecting, 8 connecting
water agenda » water agency, after agenda, water arena
agenda 2.2 » agenda 2.3, agenda 21, agenda 5.1
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 connecting water agenda 2.2 communication _ et developpement de afrique.*.