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

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