Perhaps you should try some spelling variations:
communication models » communication modes, communication mode, communication mediums
risk communication » _ communication, mobile communication
technologies a » technologies _
development en » development menu, development can, development _
a information » _ information, land information, award information
a development » _ development, clean development, asian development
models a » models _, model a, model _
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 _ de risk communication models a development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information _ de risk communication models a development en afrique.*.