Perhaps you should try some spelling variations:
clean developpement » clean development, clean developoment, le developpement
la communication » data communication, data communications
developpement en » developpement et, developpement des, developpement de
information 3 » information 2
costs clean » costs clear
die la » die lab, die lag, die lan
3 die » 2 die, _ die

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information 3 die la communication costs clean developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information 3 die la communication costs clean developpement en afrique.*.