Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
development revenue » development recent, development event, development release
revenue afrique » revenue africa
access de » access e, access fee, access age
de mass » de masse, de mais, de masa
modes a » models a, modes _, modes 3

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

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