Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
communication model » communication media
technologies 4 » technologies _
aa development » a development, ma development, asia development
4 information » 2 information, 1 information
china afrique » china africa
de crisis » debt crisis, pre crisis, age crisis
model aa » model a, model act, model ali
gap de » gap die, cap de, gap d

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information gap de crisis communication model aa development china afrique.*.