Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
risk communication » _ communication, mobile communication
technologies land » technologies any, technologies a, technology land
land information » fund information, award information, road information
spur development » drug development, api development, sector development
information gap » information _, information flow
gap does » far does

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies land information gap does risk communication modes spur development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies land information gap does risk communication modes spur development _ afrique.*.