Perhaps you should try some spelling variations:
"abacus symposium series" » "aaas symposium series", "spaces symposium series", "lakes symposium series", "abacus symposium semi", "abacus symposium sas", "abacus symposium spire"
"acs symposium series" » "acs symposium semi", "acs symposium sas", "acs symposium spire", "das symposium series", "lakes symposium series", "games symposium series"
"bacus symposium series" » "bacus symposium semi", "bacus symposium sas", "bacus symposium spire"
"bacus symposium sss" » "bacus symposium sas"

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