Perhaps you should try some spelling variations:
"association single and algebras" » "associated single and algebras", "association mining and algebras", "association sacla and algebras"
"association using and algebras" » "association mining and algebras", "association mapping and algebras"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"association single and algebras\") OR (\"association using and algebras\"))".
• Removing quotes may allow a broader search: (( association single and algebras ) OR ( association using and algebras )).
• Adding a wildcard symbol may retrieve word variants: (("association single and algebras") OR ("association using and algebras"))*.