Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
oral communication » mobile communication, _ communication, risk communication
rural development » social development
development banks » development bank
technologies a » technologies _
a information » _ information, land information, award information
costs rural » cost rural

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

• Adding a wildcard symbol may retrieve word variants: technologies a information flows _ oral communication costs rural development banks afrique.*.