Perhaps you should try some spelling variations:
oral communication » personal communication
technologies road » technologies a, technologies co, technologies ret
information gaps » information gap
per development » power development, spur development, oer developments
systems per » systems power, systems part, systems pt
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 road information gaps de oral communication systems per development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies road information gaps de oral communication systems per development _ afrique.*.