Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologien als » technologien des, technologien fur, technologien und
developing areas » developing asia, developing east, developing a
als information » als informations, aids information, laws information
areas areas » areas arenas, seas areas, areas access
1 personal » a personal, 4 personal, 1945 personal
costs 1 » costs 4, costs a, costs 5

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

• Adding a wildcard symbol may retrieve word variants: technologien als information costs 1 personal communication costs _ developing areas areas.*.