Perhaps you should try some spelling variations:
"linker's criteria" » "funder's criteria", "concerns criteria", "line criteria"
"levy's criterion" » "kelly's criterion", "lane's criterion", "level criterion"
"li's criterion" » "lms criterion", "ls criterion", "lane's criterion"
"weyl's criterion" » "well'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 ((("li's criterion") OR ("levy's criterion"))))) OR ("linker's criteria")).
• Removing quotes may allow a broader search: (((( weyl's criterion ) or ((( li's criterion ) or ( levy's criterion ))))) or ( linker's criteria )).
• Adding a wildcard symbol may retrieve word variants: (((("weyl's criterion") or ((("li's criterion") or ("levy's criterion"))))) or ("linker's criteria"))*.