Perhaps you should try some spelling variations:
"linker's criteria" » "concerns criteria"
"funder's criteria" » "concerns criteria", "funding criteria", "pde's criteria"
"weil's criterion" » "kelly's criterion", "white's criterion", "levy's criterion"
"well's criterion" » "kelly's criterion", "kelly criterion", "levy's criterion"

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: (((((("weyl's criterion") OR ("weil's criterion"))) OR ("well's criterion"))) OR ((("linker's criteria") OR ("funder's criteria")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"weyl's criterion\") OR (\"weil's criterion\"))) or (\"well's criterion\"))) or (((\"linker's criteria\") or (\"funder's criteria\"))))".
• Removing quotes may allow a broader search: (((((( weyl's criterion ) OR ( weil's criterion ))) or ( well's criterion ))) or ((( linker's criteria ) or ( funder's criteria )))).
• Adding a wildcard symbol may retrieve word variants: (((((("weyl's criterion") OR ("weil's criterion"))) or ("well's criterion"))) or ((("linker's criteria") or ("funder's criteria"))))*.