Perhaps you should try some spelling variations:
"research profession" » "research professional", "research progression", "research professionals"
"research professor" » "research process", "research prozess", "search processor"
"research processes" » "research process", "research procedures", "research projects"

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 profession")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"research professor\") OR (\"research processes\"))) or (\"research profession\"))".
• Removing quotes may allow a broader search: (((( research professor ) OR ( research processes ))) or ( research profession )).
• Adding a wildcard symbol may retrieve word variants: (((("research professor") OR ("research processes"))) or ("research profession"))*.