Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
power development » water development, career development, hydropower development
technologies new » technologies _, technologies a
development case » development bank, development a, development aid
new information » _ information, energy information, chief information
information et » information act, information _, information need
costs power » cost power, costs per, costing power

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 et de _ communication costs power development case afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information et de _ communication costs power development case afrique.*.