Perhaps you should try some spelling variations:
research progression » research regression, research progress, research progresses
research profession » research professional, research professionals, research progressions
health professions » health professionals, healthcare professionals

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 profession) OR (research progression)) ) OR ( health professions )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((research profession) OR (research progression)) ) or ( health professions ))".
• Adding a wildcard symbol may retrieve word variants: (( ((research profession) OR (research progression)) ) or ( health professions ))*.