Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
transformation 3 » transformation _, transformation a, transformation 1
developpement de » developpement des, developpement durable
4 communication » 3 communication, 5.4 communication, de communication
de africa » does africa, de america, use africa
3 der » _ der, 2 der
der 4 » der _, der e, der a

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

• Adding a wildcard symbol may retrieve word variants: technologies _ transformation 3 der 4 communication media leur developpement de africa.*.