Perhaps you should try some spelling variations:
kelly's criterion » kelly criterion, levy's criterion, euler's criterion
linker's criteria » funder's criteria, line criteria
concerns criteria » cancer criteria, concept criteria, contests criteria

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: (( ((kelly's criterion) OR (weyl's criterion)) ) OR ((( linker's criteria ) OR ( concerns criteria )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((kelly's criterion) OR (weyl's criterion)) ) or ((( linker's criteria ) or ( concerns criteria ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((kelly's criterion) OR (weyl's criterion)) ) or ((( linker's criteria ) or ( concerns criteria ))))*.