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