Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
risk communication » _ communication, mobile communication
information needs » information flows, information networks
clean development » human development, urban development, child development
technologies a » technologies _
a information » _ information, land information, award information
network clean » network area, network creation
needs de » needs _, needs a
de risk » de risi, does risk, edge risk

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

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