Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
clean development » human development, urban development, child development
technologies new » technologies _, technologies a
information need » information needs, information based, information age
new information » _ information, energy information, chief information
development can » development bank, development band, development case
skills clean » skills human

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 need de _ communication skills clean development can afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information need de _ communication skills clean development can afrique.*.