Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
clean development » human development, urban development
technologies new » technologies _, technologies 4, technologies 2
la communication » data communication, data communications
new information » 2 information
network clean » network cloud, network area, network club
bank africa » bank's africa, can africa, banking africa

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies new information _ de la communication network clean development bank africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information _ de la communication network clean development bank africa.*.