Perhaps you should try some spelling variations:
"research problemses" » "research problems", "research problem", "research progresses"
"research projectses" » "research projects", "research projektes", "research project"
"research processes" » "research procedures", "research projects", "research practices", "research projectses", "research problemses", "research projectes"
"research progress" » "research program", "research project", "research projects"
"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 problemses"))) OR ("research projectses"))) OR ((("research process") OR ("research progress")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"research processes\") or (\"research problemses\"))) or (\"research projectses\"))) or (((\"research process\") OR (\"research progress\"))))".
• Removing quotes may allow a broader search: (((((( research processes ) or ( research problemses ))) or ( research projectses ))) or ((( research process ) OR ( research progress )))).
• Adding a wildcard symbol may retrieve word variants: (((((("research processes") or ("research problemses"))) or ("research projectses"))) or ((("research process") OR ("research progress"))))*.