Perhaps you should try some spelling variations:
oral communication » personal communication
information case » information based, information can, information costs
technologies 2 » technologies _, technologies 4
development co » development case, development china
case knew » case new, case known, cases new
knew oral » knew moral, new oral, new moral
co africa » can africa, do african, 1 africa

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information case knew oral communication costs _ development co africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information case knew oral communication costs _ development co africa.*.