Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
la communication » data communication, data communications
der information » insider information, sector information, labor information
typologien der » typologie der, typologie des, apologien der
system social » systems social
a afrique » l afrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: typologien der information gap _ la communication system social development a afrique.*.