Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
does variation » de variation, der variation, die variation
typology does » typologie des, apology do's, typology how
fires mobile » free mobile, fitness mobile, from mobile
de afrique » de l'afrique, en afrique, l afrique
a du » a d, a u, _ du
a de » a die, a der, a des

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: "typology does variation _ fires mobile communication ((a du) OR (a de)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology does variation _ fires mobile communication ((a du) OR (a de)) developpement de afrique.*.