Perhaps you should try some spelling variations:
oral communication » personal communication
information case » information based, information can, information costs
developing urban » development urban, developing human, developing areas
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
a developing » a development
urban africa » urban area
case new » use new
new oral » new moral, knew moral, new rural
costs a » costs _, costs 4

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies co information case new oral communication costs a developing urban africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies co information case new oral communication costs a developing urban africa.*.