Perhaps you should try some spelling variations:
"association reactions and algebras" » "association prediction and algebras", "association examinations and algebras"
"associative rings and algebras" » "associate rings and algebras", "associations rings and algebras", "associative kings and algebras"

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: (("associative rings and algebras") OR ("association reactions and algebras")).
• Removing quotes may allow a broader search: (( associative rings and algebras ) or ( association reactions and algebras )).
• Adding a wildcard symbol may retrieve word variants: (("associative rings and algebras") or ("association reactions and algebras"))*.