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
new information » 2 information
information age » information storage, information access, information about
network clean » network cloud, network area, network club
nets mass » nets task
age nets » age needs, a nets

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 age nets mass communication network clean development _ africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information age nets mass communication network clean development _ africa.*.