Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien als » technologien des, technologien fur, technologien und
developing based » development based, developing asia, developing east
als information » als informations, aids information, laws information
a developing » a development
based areas » base areas, based areal, basic areas
costs best » costs berth, costs cost, costs just
best oral » best deal
costs a » costs _, costs 4

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 best oral communication costs a developing based areas.*.