Perhaps you should try some spelling variations:
data communication » data communications
developpement de » developpement des, developpement durable
und variablen » der variablen
typology und » typologie und, typologien und, typology _
de afrique » de l'afrique, en afrique, l afrique
doch data » doch das, onh data, rich data
a le » a les, a l, a e

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 und variablen und doch data communication ((a le) OR (a la)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology und variablen und doch data communication ((a le) OR (a la)) developpement de afrique.*.