Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien aids » technologien als, technologien ad, technologien des
information costs » information contents, information centers, information content
aids information » chandos information, series information
developing basic » developing asia, developing based, developing brazil
3 developing » 3 development
d personal » de personal, a personal, 1 personal
costs d » costs _, costs 4, costs a
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information costs d personal communication costs 3 developing basic ideas.*.