Perhaps you should try some spelling variations:
"research problemses" » "research problems", "research problem", "research problemy"
"research progresses" » "research progress", "research programmes", "research congresses"
"research processes" » "research process", "research procedures", "research progress"

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 problemses") OR ("research progresses"))))) OR ((("research project") OR ("research projects")))).
• Removing quotes may allow a broader search: (((( research processes ) or ((( research problemses ) or ( research progresses ))))) or ((( research project ) or ( research projects )))).
• Adding a wildcard symbol may retrieve word variants: (((("research processes") or ((("research problemses") or ("research progresses"))))) or ((("research project") or ("research projects"))))*.