Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
oral communication » mobile communication, _ communication, risk communication
technologies dis » technologies fish, technologies icts, technologies _
developpement en » development _, development a, development co
dis information » aids information, does information, iv information
information et » information act, information _, information need

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies dis information et de oral communication costs _ developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies dis information et de oral communication costs _ developpement en afrique.*.