Perhaps you should try some spelling variations:
task communication » risk communication, risk communications, tasks communicative
urban development » human development
information need » information needs, information needed, information speed
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
need set » need kept, need art, need fit
set task » meet task, nets task
networks » network

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 need set task communication networks urban development _ africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information need set task communication networks urban development _ africa.*.