Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
transformation der » transformation _
technologies die » technologies de, technologie die, technologies bit
developpement de » developpement des, developpement durable
1 developpement » de developpement, le developpement, et developpement
de african » do african, de africa, me african
series 1 » series _
12 risk » 1.2 risk, 2 risk, 10 risk
der 12 » der 10, der 11, der 15

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

• Adding a wildcard symbol may retrieve word variants: technologies die transformation der 12 risk communication series 1 developpement de african.*.