Perhaps you should try some spelling variations:
"linker's criteria" » "funder's criteria", "concerns criteria", "line criteria"
"weil's criterion" » "weyl's criterion", "kelly's criterion", "white's criterion"
"concept criteria" » "consent criteria", "contest criteria", "context criteria"

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: (("weil's criterion") OR ((("linker's criteria") OR ("concept criteria")))).
• Removing quotes may allow a broader search: (( weil's criterion ) or ((( linker's criteria ) or ( concept criteria )))).
• Adding a wildcard symbol may retrieve word variants: (("weil's criterion") or ((("linker's criteria") or ("concept criteria"))))*.