Perhaps you should try some spelling variations:
"das symposion series" » "das symposium series", "das symposia series", "das composition series"
"backs symposium i" » "spaces symposium i", "lakes symposium i", "bibos symposium i", "backs symposium iv", "backs symposium isvc"
"acs symposium sieds" » "acs symposium series", "acs symposium sas", "acs symposium sss", "das symposium sieds", "lakes symposium sieds", "games symposium sieds"
"acs symposium ii" » "das symposium ii", "lakes symposium ii", "games symposium ii", "acs symposium iv", "acs symposium ismis", "acs symposium isvc", "acs symposium ivi", "acs symposium isvci"
"bacus symposium i" » "bacus symposium iv", "bacus symposium isvc", "abacus symposium i", "baus symposium i", "bachs symposium i"

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 i") OR ("backs symposium i"))) OR ("acs symposium ii"))) OR ((("acs symposium sieds") OR ("das symposion series")))).
• Removing quotes may allow a broader search: (((((( bacus symposium i ) or ( backs symposium i ))) or ( acs symposium ii ))) or ((( acs symposium sieds ) or ( das symposion series )))).
• Adding a wildcard symbol may retrieve word variants: (((((("bacus symposium i") or ("backs symposium i"))) or ("acs symposium ii"))) or ((("acs symposium sieds") or ("das symposion series"))))*.