Perhaps you should try some spelling variations:
series information » business information
information crises » information classes, information costs, information risk
6.1 communication » 4.1 communication, 1.1 communication, 3.1 communication
developpement l » developpement il, developpement la, developpement de
crises case » crises east
l afrique » en afrique
case 6.1 » case 16.1, case 6.12, case 6.13

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

• Adding a wildcard symbol may retrieve word variants: technology series information crises case 6.1 communication costs _ developpement l afrique.*.