Perhaps you should try some spelling variations:
oral communication » personal communication
rate information » trade information, care information, age information
information need » information needs, information needed, information speed
technology rate » technology state, technology role, technology related
e development » sme development, mine development, site development
systems e » systems el, systems eu, systems ex
a afrique » l 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.

• Adding a wildcard symbol may retrieve word variants: technology rate information need de oral communication systems e development a afrique.*.