Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
risk communication » _ communication, mobile communication
information needs » information flows, information networks
technologies a » technologies _
de development » e development, de developpement, code development
a information » _ information, land information, award information
needs de » needs _, needs a
costs de » costs per, costs _, costs a
de risk » de risi, does risk, edge risk

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information needs de risk communication costs de development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information needs de risk communication costs de development _ afrique.*.