Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien und » technologie und, technologien des, technologien fur
developing basic » developing asia, developing based, developing brazil
und information » fund information, road information, award information
3 developing » 3 development
basic areas » basin area, basic ideas, basic access
costs der » costs differ
der oral » der moral, der ort, der orte
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 und information costs der oral communication costs 3 developing basic areas.*.