Perhaps you should try some spelling variations:
"strings proceedings in mathematics & statistics" » "rings proceedings in mathematics & statistics", "strategies proceedings in mathematics & statistics", "atrocious proceedings in mathematics & statistics"
"things proceedings in mathematics & statistics" » "rings proceedings in mathematics & statistics"

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: "((\"strings proceedings in mathematics & statistics\") OR (\"things proceedings in mathematics & statistics\"))".
• Removing quotes may allow a broader search: (( strings proceedings in mathematics & statistics ) OR ( things proceedings in mathematics & statistics )).
• Adding a wildcard symbol may retrieve word variants: (("strings proceedings in mathematics & statistics") OR ("things proceedings in mathematics & statistics"))*.