Perhaps you should try some spelling variations:
oral communication » personal communication
mine development » sme development, trade development, business development
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
a afrique » l afrique, en afrique
flows de » flows do, flows debt, flows bei
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 a information flows de oral communication _ mine development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information flows de oral communication _ mine development a afrique.*.