Perhaps you should try some spelling variations:
"tissue research studies" » "tissue research study", "issues research studies", "pressure research studies"
"residue research series" » "residues research series", "residual research series", "resident research series", "residue research services", "residue research theories", "residue research service", "residue research queries", "residue research server"
"rescue research series" » "resource research series", "issue research series", "response research series", "rescue research services", "rescue research theories", "rescue research service", "rescue research queries", "rescue research server"
"rescue search series" » "rescue sar series", "rescue search services", "rescue search queries", "rescue search server"

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