Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
technologies trade » technology trade, technologies case, technologies table
clean development » human development, urban development
la communication » data communication, data communications
development case » development china
integration et » integration ein, integration 3, integration 4
skills clean » skills can, spills cleanup, skills create

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies trade integration et de la communication skills clean development case afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies trade integration et de la communication skills clean development case afrique.*.