Perhaps you should try some spelling variations:
"resource research series" » "resources research series", "source research series", "resource search series", "resource research services", "resource research service", "resource research summaries"
"resource research studies" » "resources research studies", "source research studies", "resource search studies", "resource research study"
"rescue research theories" » "rescue research theory", "rescue research themes", "rescue research topics", "residue research theories", "rescue search theories", "tissue research theories"
"rescue research series" » "residue research series", "rescue search series", "tissue research series", "rescue research services", "rescue research service", "rescue research summaries"

Try widening your search to All Fields.

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: (((("rescue research series") OR ((("resource research series") OR ("resource research studies"))))) OR ("rescue research theories")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"rescue research series\") or (((\"resource research series\") OR (\"resource research studies\"))))) or (\"rescue research theories\"))".
• Removing quotes may allow a broader search: (((( rescue research series ) or ((( resource research series ) OR ( resource research studies ))))) or ( rescue research theories )).
• Adding a wildcard symbol may retrieve word variants: (((("rescue research series") or ((("resource research series") OR ("resource research studies"))))) or ("rescue research theories"))*.