Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
transformation vom » transformation von, transformationen vom, transformation am
developpement 1.4 » development 1.4, developpement des, developpement de
du developpement » de developpement, le developpement, et developpement
1.4 african » 2.4 african, 1.1 african, 11.2 african
series du » series d, series de, series luc
vom 10 » vom 11, vom 15, vom 12

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

• Adding a wildcard symbol may retrieve word variants: technologies _ transformation vom 10 risk communication series du developpement 1.4 african.*.