Perhaps you should try some spelling variations:
weil's criterion » kelly's criterion, white's criterion, levy's criterion
wiener criterion » wiener's criterion, fisher criterion, linear criterion
wiener criteria » inter criteria, filter criteria, cient criteria
weyl's » well'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 ( weil's criterion ))) OR ((( wiener criteria ) OR ( wiener criterion )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( weyl's criterion ) or ( weil's criterion ))) or ((( wiener criteria ) OR ( wiener criterion ))))".
• Adding a wildcard symbol may retrieve word variants: (((( weyl's criterion ) or ( weil's criterion ))) or ((( wiener criteria ) OR ( wiener criterion ))))*.