Perhaps you should try some spelling variations:
technologies change » technologies changing, technological change, technologies chapter
change information » chandos information, trade information
oral communication » personal communication
information gaps » information gap
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.

• Performing a fuzzy search may retrieve terms with similar spellings: technologies change information gaps de oral communication networks _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies change information gaps de oral communication networks _ development a afrique.*.