Perhaps you should try some spelling variations:
"resource research series" » "resources research series", "resource search series", "source research series", "resource research theories", "resource research studies", "resource research summaries"
"rescue research services" » "rescue search services", "rescue search service", "rescue research overview", "rescue research overviews", "rescue research sections", "tissue research services", "issue research services"
"residue research series" » "residues research series", "residual research series", "resident research series", "residue research theories", "residue research studies", "residue research summaries"
"rescue research service" » "rescue search service", "rescue research overview", "rescue research section", "tissue research service", "issue research service"

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