Perhaps you should try some spelling variations:
technologies energy » technologies general, technology energy, technologies any
oral communication » personal communication
development band » development bank, development banks
information et » l'information et, information 2, information 1
de development » e development, ce development, de developpement
band afrique » en afrique
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 energy information et de oral communication _ de development band afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies energy information et de oral communication _ de development band afrique.*.