Perhaps you should try some spelling variations:
"caper automatic association" » "caper automatic dissociation", "caper automating associations", "caper automatic classication", "paper automatic association", "papers automatic association", "cancer automatic association"
"rate automatic association" » "rate automatic dissociation", "rate automating associations", "rate automatic classication", "case automatic association", "page automatic association", "remote automatic association"

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: (("caper automatic association") OR ("rate automatic association")).
• Removing quotes may allow a broader search: (( caper automatic association ) or ( rate automatic association )).
• Adding a wildcard symbol may retrieve word variants: (("caper automatic association") or ("rate automatic association"))*.