Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
oral communication » mobile communication, _ communication, risk communication
risk information » aids information, bank information, tourism information
technology risk » technology ict, technology park, technology push
development a » development _, development bank, development banks
flows debt » low debt

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology risk information flows debt oral communication modes _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology risk information flows debt oral communication modes _ development a afrique.*.