Perhaps you should try some spelling variations:
"aaas symposium series" » "aaas symposium semi", "aaas symposium sas", "aaas symposium ssbse", "das symposium series", "acs symposium series", "cas symposium series"
"abacus symposium spire" » "bacus symposium spire", "acs symposium spire", "spaces symposium spire"
"abacus symposium sss" » "bacus symposium sss", "acs symposium sss", "spaces symposium sss", "abacus 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: (((("aaas symposium series") OR ("abacus symposium spire"))) OR ("abacus symposium sss")).
• Removing quotes may allow a broader search: (((( aaas symposium series ) or ( abacus symposium spire ))) or ( abacus symposium sss )).
• Adding a wildcard symbol may retrieve word variants: (((("aaas symposium series") or ("abacus symposium spire"))) or ("abacus symposium sss"))*.