Perhaps you should try some spelling variations:
research professor » research profession, research prozess, search processor
research processes » research procedures, research progress, search process
research practices » research practice, research perspectives
research projects » research project
research process » research progress, research problems, 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 processes) OR (research practices)) ))) OR ( research process ))) OR ( research projects )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((( research professor ) or ( ((research processes) OR (research practices)) ))) or ( research process ))) or ( research projects ))".
• Adding a wildcard symbol may retrieve word variants: (((((( research professor ) or ( ((research processes) OR (research practices)) ))) or ( research process ))) or ( research projects ))*.