Perhaps you should try some spelling variations:
communication 1.1 » communication 4.1, communication 7.1, communication 1.3
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
information der » information oder, information does, informatik der
power risk » powers risk, lower risk, power ric
der power » den power, peer power, dc power
1.1 der » 2.1 der, 3.1 der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information der power risk communication 1.1 der developpement en afrique.*.