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