Perhaps you should try some spelling variations:
"research processes" » "research procedures", "research projects", "research practices", "research projectses", "research problemses", "research projectes"
"research progress" » "research program", "research project", "research projects"
"research problem" » "research problems", "research program", "research programs"
"research process" » "research projects", "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 processes") OR ("research progress"))) OR ("research problem"))) OR ("research process")).
• Removing quotes may allow a broader search: (((((( research processes ) or ( research progress ))) or ( research problem ))) or ( research process )).
• Adding a wildcard symbol may retrieve word variants: (((((("research processes") or ("research progress"))) or ("research problem"))) or ("research process"))*.