Perhaps you should try some spelling variations:
communication using » communications using, communication during, communicating using
face communication » voice communication, de communication, time communication
technical system » technical systems, technical series
system formation » system transformation, systeme d'information, system function
all developing » small developing, all development, 3 developing
developing a » developing _
using all » using als, using small, using a
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: technical system formation _ der face communication using all developing a areas.*.