Perhaps you should try some spelling variations:
"research professionals" » "research professional", "resource professionals", "researching professional"
"research progression" » "research regression", "research progress", "research professional"
"research progresses" » "research progress", "research processes", "research programmes"

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