Perhaps you should try some spelling variations:
linker's criteria » funder's criteria, concerns criteria, line criteria
levy's criterion » kelly's criterion, weyl's criterion, lane's criterion
concept criteria » consent criteria, contest criteria, context criteria
kelly criterion » energy 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: (( ((levy's criterion) OR (kelly criterion)) ) OR ((( linker's criteria ) OR ( concept criteria )))).
• Adding a wildcard symbol may retrieve word variants: (( ((levy's criterion) or (kelly criterion)) ) or ((( linker's criteria ) or ( concept criteria ))))*.