Perhaps you should try some spelling variations:
oral communication » personal communication
technologies daf » technologies dans, technologies a, technologies de
information flow » information flows
daf information » f information, math information, 2 information
use development » case development, sme development, e development
a afrique » l afrique, en afrique
flow de » flow der, flow e
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 daf information flow de oral communication _ use development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies daf information flow de oral communication _ use development a afrique.*.