Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
improve information » improved information, improving information, improve innovation
oral communication » personal communication
information need » information needs, information needed, information speed
de development » e development, ce development, de developpement
skills de » skills do, skills _, skills a
a afrique » l afrique, en afrique
need de » need le, need fide, need one
de oral » de otras, new oral
technologies » technology

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies improve information need de oral communication skills de development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies improve information need de oral communication skills de development a afrique.*.