Perhaps you should try some spelling variations:
"acs symposium series" » "acs symposium semi", "acs symposium sas", "acs symposium sss", "lakes symposium series", "games symposium series", "gauss symposium series"
"das symposium series" » "das symposium semi", "das symposium sas", "das symposium sss", "das symposion series", "texas symposium series", "lakes symposium series"
"acs symposium sieds" » "acs symposium sas", "acs symposium sss", "acs symposium semi", "lakes symposium sieds", "games symposium sieds", "gauss symposium sieds"
"bacus symposium irs" » "bacus symposium iv", "bacus symposium i", "bacus symposium iii", "abacus symposium irs", "backs symposium irs", "baus symposium irs"
"acs symposium ii" » "lakes symposium ii", "games symposium ii", "gauss symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"

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 ii"))) OR ((("acs symposium sieds") OR ((("acs symposium series") OR ("das symposium series"))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"bacus symposium irs\") or (\"acs symposium ii\"))) or (((\"acs symposium sieds\") or (((\"acs symposium series\") OR (\"das symposium series\"))))))*".
• Removing quotes may allow a broader search: (((( bacus symposium irs ) or ( acs symposium ii ))) or ((( acs symposium sieds ) or ((( acs symposium series ) OR ( das symposium series ))))))*.