Perhaps you should try some spelling variations:
"acs symposium series" » "acs symposium semi", "acs symposium sas", "acs symposium sss", "gauss symposium series", "chaos symposium series", "ecsis symposium series"
"games symposium series" » "games symposium semi", "games symposium sas", "games symposium sss", "gauss symposium series", "cities symposium series", "eines symposiums series"
"lakes symposium sieds" » "lakes symposium sas", "lakes symposium sss", "lakes symposium semi"
"das symposium ii" » "das symposion ii", "texas symposium ii", "npss symposium ii", "das symposium i", "das symposium ismis", "das symposium isvc"
"bacus symposium iv" » "bacus symposium isvc", "abacus symposium iv", "backs symposium iv", "baus symposium iv"

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