Perhaps you should try some spelling variations:
communication methods » communication networks, communication network, communications networks
risk communication » _ communication, mobile communication
development urban » development bank, development band, development update
technologies how » technologies new, technologies _, technologies a
information need » information needs, information based, information age
how information » new information, job information, _ information
e development » _ development, a development, sme development
urban africa » urban area, rural africa
methods e » methods _, method _
des risk » does risk, nets risk, key 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 how information need des risk communication methods e development urban africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies how information need des risk communication methods e development urban africa.*.