Perhaps you should try some spelling variations:
risk communications » risk communication, rica communications, crisis communications
developpement et » developpement des, developpement de, development east
typologies 2 » typologies _, typologies 3, typologies 2.3
2 variation » 2 variations
et afrique » en afrique, l afrique
a beam » _ beam, 3 beam, 4 beam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologies 2 variation _ term risk communications ((a beam) OR (2 beam)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies 2 variation _ term risk communications ((a beam) OR (2 beam)) developpement et afrique.*.