Perhaps you should try some spelling variations:
oral communication » personal communication
clean development » human development, urban development
information need » information needs, information needed, information speed
development can » development case, development co, development canada
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
costs clean » costs clear
can afrique » en afrique
need de » need le, need fide, need one
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 need de oral communication costs clean development can afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information need de oral communication costs clean development can afrique.*.