Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
oral communication » mobile communication, _ communication, risk communication
development banks » development bank
technologies how » technologies new, technologies _, technologies a
how information » new information, job information, _ 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 how information et de oral communication costs _ development banks afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies how information et de oral communication costs _ development banks afrique.*.