Perhaps you should try some spelling variations:
"abacus symposium series" » "acs symposium series", "aaas symposium series", "spaces symposium series", "abacus symposium semi", "abacus symposium spire", "abacus symposium ssbse"
"abacus symposium sss" » "acs symposium sss", "aaas symposium sss", "spaces symposium sss"
"bacus symposium sas" » "bacus symposium sans", "bacus symposium sams"

Try widening your search to All Fields.

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: (("abacus symposium series") OR ((("abacus symposium sss") OR ((("bacus symposium sss") OR ("bacus symposium sas")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"abacus symposium series\") or (((\"abacus symposium sss\") or (((\"bacus symposium sss\") OR (\"bacus symposium sas\"))))))".
• Removing quotes may allow a broader search: (( abacus symposium series ) or ((( abacus symposium sss ) or ((( bacus symposium sss ) OR ( bacus symposium sas )))))).
• Adding a wildcard symbol may retrieve word variants: (("abacus symposium series") or ((("abacus symposium sss") or ((("bacus symposium sss") OR ("bacus symposium sas"))))))*.