Perhaps you should try some spelling variations:
"acs symposium sieds" » "acs symposium series", "acs symposium sas", "acs symposium sss", "bacus symposium sieds", "das symposium sieds", "lakes symposium sieds"
"ACS symposium isvc" » "ACS symposium isaac"
"acs symposium ii" » "bacus symposium ii", "das symposium ii", "lakes symposium ii", "acs symposium i", "acs symposium ismis", "acs symposium ieee"

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