Perhaps you should try some spelling variations:
"research procedures" » "search procedures", "search procedure", "research proceedings"
"research professor" » "research profession", "research progresson", "research prozess"
"research processes" » "research projects", "research practices", "search process", "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 professor") OR ((("research process") OR ("research progress"))))) OR ((("research processes") OR ("research procedures"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"research professor\") or (((\"research process\") OR (\"research progress\"))))) or (((\"research processes\") or (\"research procedures\"))))*".
• Removing quotes may allow a broader search: (((( research professor ) or ((( research process ) OR ( research progress ))))) or ((( research processes ) or ( research procedures ))))*.