Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
de afrique » de l'afrique, en afrique, l afrique
a add » _ add, 3 add, 2 add
1 add » _ add

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: "typologie does variation _ under risk communication ((a add) OR (1 add)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie does variation _ under risk communication ((a add) OR (1 add)) developpement de afrique.*.