Perhaps you should try some spelling variations:
oral communication » personal communication
development banks » development bank
rate information » trade information, care information, age information
technology rate » technology state, technology role, technology related
debt oral » debt moral, debt oil
costs a » costs _, costs 4

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

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