Perhaps you should try some spelling variations:
personal communication » interpersonal communication
software developpement » software development, software developers, software deployment
communication costly » communication costs, communication costa, communications costs
developpement en » developpement et, developpement des, developpement de
costly software » costs software, complex software, control software
der personal » der personalen, der personen, der person
variation 6 » variation _, variations _, variation des
6 der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation 6 der personal communication costly software developpement en afrique.*.