Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication costa » communication costs, communications costs, communication cote
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information 6.3 » information 16.3, information 1.3, information 6.1
non personal » 1 personal, 4 personal, 2 personal
developing 1 » developing _, developing a, developing e
6.3 non » 16.3 non, 4.3 non, 5.3 non
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: technologien des information 6.3 non personal communication costa _ developing 1 areas.*.