Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
change information » chandos information, trade information
clean development » human development, urban development
information a » information age, information about
modes clean » more clean
de mass » de masse, de mais, de masa
a de » a die, a der, a des
technological » technologies

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

• Performing a fuzzy search may retrieve terms with similar spellings: technological change information a de mass communication modes clean development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technological change information a de mass communication modes clean development _ afrique.*.