Perhaps you should try some spelling variations:
"das symposion series" » "das symposium series", "das symposia series", "das composition series"
"acs symposium sieds" » "acs symposium series", "acs symposium sas", "acs symposium semi", "lakes symposium sieds", "games symposium sieds", "chaos symposium sieds"
"gauss symposium sieds" » "gauss symposium series", "gauss symposium sas", "gauss symposium semi", "games symposium sieds", "lakes symposium sieds", "npss symposium sieds"
"bacus symposium iii" » "bacus symposium iv", "bacus symposium i", "bacus symposium ismis", "bacus symposium ivi", "bacus symposium ii", "bacus symposium ismisi", "abacus symposium iii", "backs symposium iii", "baus symposium iii"
"acs symposium ii" » "lakes symposium ii", "games symposium ii", "chaos symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"
"das symposium sss" » "texas symposium sss", "lakes symposium sss", "npss symposium sss", "das 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: (((("bacus symposium iii") OR ("acs symposium ii"))) OR ((((("acs symposium sieds") OR ("gauss symposium sieds"))) OR ((("das symposion series") OR ("das symposium sss")))))).
• Removing quotes may allow a broader search: (((( bacus symposium iii ) or ( acs symposium ii ))) or ((((( acs symposium sieds ) or ( gauss symposium sieds ))) or ((( das symposion series ) or ( das symposium sss )))))).
• Adding a wildcard symbol may retrieve word variants: (((("bacus symposium iii") or ("acs symposium ii"))) or ((((("acs symposium sieds") or ("gauss symposium sieds"))) or ((("das symposion series") or ("das symposium sss"))))))*.