Perhaps you should try some spelling variations:
developpement durable » developpement de
der developpement » de developpement, des developpements, leur developpement
de communication » mobile communication, online communication
durable africa » rural africa
formal labor » rural labor, local labor, total labor
media der » media order, media under, mediale der
value de » value dave, value does, value add

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

• Adding a wildcard symbol may retrieve word variants: technologien _ formal labor value de communication media der developpement durable africa.*.