Perhaps you should try some spelling variations:
communication model » communication media
urban developpement » urban development, urban developments, un developpement
data communication » data communications
developpement en » developpement et, developpement des, developpement de
informatik der » information der, information oder, informatik und
model urban » modern urban, modeling urban
der cases » der case, der care, der cas

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

• Adding a wildcard symbol may retrieve word variants: technologies _ informatik der cases data communication model urban developpement en afrique.*.