Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
change information » chandos information, trade information
oral communication » personal communication
technology change » technological change, technological changes
clean development » human development, urban development
information gaps » information gap
skills clean » skills can, spills cleanup, skills create
gaps de » gaps do, camps de, gaps new
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: technology change information gaps de oral communication skills clean development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology change information gaps de oral communication skills clean development _ afrique.*.