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
a developing » a development
developing 1 » developing _, developing a, developing e
der face » der farce, der fake, der facher
using a » using _
1 areas » 1 area, 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 a developing 1 areas.*.