Perhaps you should try some spelling variations:
communication cost » communication costs, communications costs, communication mode
technologies new » technologies _, technologies a
la communication » _ communication, mass communication, oral communication
new information » _ information, energy information, chief information
per development » power development, spur development, power developments
development aid » development a, development bank, development _

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies new information _ de la communication cost per development aid afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information _ de la communication cost per development aid afrique.*.