Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
development bank » development _
information gap » information _, information flow
a development » _ development, clean development, asian development
bank afrique » bank africa
des mobile » does mobile
costs a » costs _

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 gap des mobile communication costs a development bank afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information gap des mobile communication costs a development bank afrique.*.