Perhaps you should try some spelling variations:
oral communication » personal communication
communication four » communication our, communication pour, communication fear
clean development » human development, urban development
technologies a » technologies _, technologies 4, technologies 2
information et » l'information et, information 2, information 1
development en » developpement en, development menu, development eco
a information » 2 information, 1 information
de oral » de otras, new oral

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 et de oral communication four clean development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information et de oral communication four clean development en afrique.*.