Perhaps you should try some spelling variations:
"cure research theories" » "cure research theory", "cure research themes", "cure research topics", "curve research theories", "care research theories", "core research theories"
"scope research studies" » "scope research study", "europe research studies", "cube research studies", "cyclone research studies"
"scope research series" » "scope research services", "scope research service", "scope research summaries", "europe research series", "cube research series", "cyclone research series"

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: (((("scope research series") OR ("scope research studies"))) OR ("cure research theories")).
• Removing quotes may allow a broader search: (((( scope research series ) or ( scope research studies ))) or ( cure research theories )).
• Adding a wildcard symbol may retrieve word variants: (((("scope research series") or ("scope research studies"))) or ("cure research theories"))*.