Perhaps you should try some spelling variations:
"research professionals" » "research professional", "resource professionals", "researching professional", "research professionalals", "research progressionals", "research progressionsals"
"research profession" » "research professional", "research progression", "research progressions"
"research projects" » "research project"
"research problems" » "research progress", "research project", "research program"
"research process" » "research progress", "research project", "research program"

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