Perhaps you should try some spelling variations:
technologies energy » technologies new, technologies any
oral communication » mobile communication, _ communication, risk communication
communication does » communication modes, communication costs, communication needs
de developpement » _ development, a development, sme development
information et » information act, information _, information need
does de » does debt

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies energy information et de oral communication does de developpement _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies energy information et de oral communication does de developpement _ afrique.*.