Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
oral communication » personal communication
technologies key » technologies any, technologies know, technologies _
information gaps » information gap
key information » energy information
use development » case development, sme development, e development
modes use » models use, model use, models used
a afrique » l afrique, en afrique
gaps de » gaps do, camps de, gaps new
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologies key information gaps de oral communication modes use development a afrique.*.