Perhaps you should try some spelling variations:
kelly's criterion » kelly criterion, levy's criterion, euler's criterion
linker's criteria » funder's criteria, concerns criteria, line criteria
well's criterion » kelly criterion, levy's criterion, li's criterion
cancer materials » carrier materials, chapter materials, laser materials
caliber arterial » cancer arterial, catheter arterial, after arterial

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: "((\"((well's criterion) OR (((kelly's criterion) OR (weyl's criterion))))\") or (((\"linker's criteria\") or (\"((cancer materials) OR (caliber arterial))\"))))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"((well's criterion) or (((kelly's criterion) OR (weyl's criterion))))\\") or (((\\"linker's criteria\\") or (\\"((cancer materials) or (caliber arterial))\\"))))\"".
• Removing quotes may allow a broader search: (( ((well's criterion) or (((kelly's criterion) OR (weyl's criterion)))) ) or ((( linker's criteria ) or ( ((cancer materials) or (caliber arterial)) )))).