Perhaps you should try some spelling variations:
oral communication » personal communication
technologien cost » technologien ist, technologien des, technologies co
information based » information case, information bank, transformation based
cost information » postal information, about information, asset information
developing urban » development urban, developing human, developing areas
new oral » new moral, knew moral, new rural

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologien cost information based new oral communication costs _ developing urban areas.~.
• Adding a wildcard symbol may retrieve word variants: technologien cost information based new oral communication costs _ developing urban areas.*.