Perhaps you should try some spelling variations:
"research procedures" » "search procedures", "search procedure", "research proceedings"
"research processes" » "research process", "research projects", "research progress"
"research problems" » "research progress", "research program", "research projects"

You may be able to get more results by adjusting your search query.

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