Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
oral communication » mobile communication, _ communication, risk communication
development among » development banking, development agency, development agenda
technologies new » technologies _, technologies a
new information » _ information, energy information, chief information
information act » information age, information about, information gaps

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

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