Perhaps you should try some spelling variations:
technologies resource » technologies reduce, technological resources, technologies discourse
oral communication » personal communication
allocation need » allocation united, allocation based, allocation intel
a afrique » l afrique, en afrique
need de » need le, need fide, need one
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 resource allocation need de oral communication costs _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies resource allocation need de oral communication costs _ development a afrique.*.