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