Perhaps you should try some spelling variations:
research profession » research professional, research progression, research professionals
research professor » research progresson, research processes, research prozess
research problems » research progress, research project, research program
research process » research progress, research projects, research project

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((( research professor ) OR ( research profession ))) OR ( ((research process) OR (research problems)) ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( research professor ) or ( research profession ))) or ( ((research process) OR (research problems)) ))*".