Talvez debería tentar con algunhas variantes ortográficas:
communication argumentation » communication documentation, communication presentation, communication instrumentation
diversifying database » advertising database, specifying database
identifying database » identifying disease, specifying database, demystifying databases

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication argumentation based ((diversifying database) OR (identifying database)) invited~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication argumentation based ((diversifying database) OR (identifying database)) invited*".