Perhaps you should try some spelling variations:
technologies contact » technologies economics, technological content, technology content
mass communication » risk communication, _ communication, mobile communication
clear development » clean development, clean developoment, career development
development case » development bank, development a, development aid
communication a » communication _, communications _, communicating _
information et » information act, information _, information need
de mass » does mass, ice mass

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies contact information et de mass communication a clear development case afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies contact information et de mass communication a clear development case afrique.*.