Perhaps you should try some spelling variations:
clean development » human development, urban development, child development
information age » information gaps, information laws, information _
development can » development bank, development band, development case
technologies a » technologies _
a information » _ information, land information, award information
de mobile » does mobile, _ mobile, a mobile

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