Perhaps you should try some spelling variations:
technologies energy » technologies general, technology energy, technologies any
communication mode » communication model, communication modes, communication module
la communication » data communication, data communications
per development » power development, spur development, oer developments
development aid » development a, development africa, development agenda
mode per » mode der, models per, mode de

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 _ de la communication mode per development aid afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies energy information _ de la communication mode per development aid afrique.*.