Perhaps you should try some spelling variations:
"linker's criteria" » "funder's criteria", "concerns criteria", "line criteria"
"well's criterion" » "kelly's criterion", "kelly criterion", "wiener's criterion"
"levy's criterion" » "kelly's criterion", "lane's criterion", "level criterion"
"li's criterion" » "lms criterion", "ls criterion", "lane's criterion"
"weyl's criterion" » "weil'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 ((("well's criterion") OR ((("levy's criterion") OR ("li's criterion"))))))) OR ("linker's criteria")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"weyl's criterion\") or (((\"well's criterion\") or (((\"levy's criterion\") OR (\"li's criterion\"))))))) or (\"linker's criteria\"))".
• Removing quotes may allow a broader search: (((( weyl's criterion ) or ((( well's criterion ) or ((( levy's criterion ) OR ( li's criterion ))))))) or ( linker's criteria )).
• Adding a wildcard symbol may retrieve word variants: (((("weyl's criterion") or ((("well's criterion") or ((("levy's criterion") OR ("li's criterion"))))))) or ("linker's criteria"))*.