Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
developing east » development east, developing a, developing asia
technologien d » technologien ad, technologien _, technologien 1
d information » nd information, od information, und information
a developing » a development
east areas » karst areas, east asezs
costs 3 » costs _, costs 4, costs 5
costs a » costs _, costs 4
3 oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien d information costs 3 oral communication costs a developing east areas.*.