Perhaps you should try some spelling variations:
man communication » human communication, oman communications, lean communication
zu developpement » du developpement, au developpement, ou developpement
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
wie man » wie kann
1 wie » 1 die, 2 wie, 3 wie
3 zu » 3 zur, 3 zum, 2 zu

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 wie man communication 3 zu developpement de l'afrique.*.