Perhaps you should try some spelling variations:
technological system » technological systems, technological waste, technical system
communication using » communications using, communication during, communicating using
face communication » voice communication, de communication, time communication
system formation » system transformation, systeme d'information, system function
small developing » rural developing
developing a » developing _
using small » using smaller, using smart, bring small
der face » der farce, der fake, der facher
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technological system formation _ der face communication using small developing a areas.*.