Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
sites developpement » site development, site's development, de developpement
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
first crisis » post crisis, first credit, first class
des afrique » en afrique, de l'afrique
3.2 first » 3.1 first, 3 first, 2.1 first
a sites » _ sites, a site, 2 sites

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

• Adding a wildcard symbol may retrieve word variants: technologies a information 3.2 first crisis communication a sites developpement des afrique.*.