Perhaps you should try some spelling variations:
levy's criterion » kelly's criterion, lane's criterion, level criterion
wiener criteria » wiener criterion, inter criteria, cient criteria
filter criteria » inter criteria, better criteria, floor criteria
weyl's » well's, weil's

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 criteria ) OR ( filter criteria )))).
• Adding a wildcard symbol may retrieve word variants: (((( weyl's criterion ) or ( levy's criterion ))) or ((( wiener criteria ) or ( filter criteria ))))*.