Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information centers » information contents, information officers
technologien od » technologien ad, technologien und, technologien _
od information » d information, nd information, road information
developing can » developing a, developing ai, developing av
3 developing » 3 development
de personal » der personal, des personal, de persona
centers de » centers _, centres de, centers 10
can africa » urban africa
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 od information centers de personal communication costs 3 developing can africa.*.