Perhaps you should try some spelling variations:
clean development » human development, urban development
hard information » card information, hand information, award information
la communication » data communication, data communications
technology hard » technology has, technology have, technology hydro
a clean » _ clean, a clear
gap de » gap die, cap de, gap d

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: technology hard information gap de la communication a clean development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology hard information gap de la communication a clean development _ afrique.*.