Perhaps you should try some spelling variations:
"wiener criterion" » "wiener's criterion", "wiener criteria", "linear criterion"
"levy's criterion" » "kelly's criterion", "lane's criterion", "level 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 ("levy's criterion"))) OR ((("wiener criterion") OR ("fisher criterion")))).
• Removing quotes may allow a broader search: (((( weyl's criterion ) or ( levy's criterion ))) or ((( wiener criterion ) or ( fisher criterion )))).
• Adding a wildcard symbol may retrieve word variants: (((("weyl's criterion") or ("levy's criterion"))) or ((("wiener criterion") or ("fisher criterion"))))*.