Perhaps you should try some spelling variations:
"acs symposium series" » "acs symposium semi", "acs symposium sas", "acs symposium sss", "das symposium series", "games symposium series", "gauss symposium series"
"acs symposium sieds" » "acs symposium sas", "acs symposium sss", "acs symposium semi", "das symposium sieds", "games symposium sieds", "gauss 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" » "das symposium ii", "games symposium ii", "gauss symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"
"lakes symposium ii" » "lakes symposium iv", "lakes symposium i", "lakes 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 iii") OR ((("acs symposium ii") OR ("lakes symposium ii"))))) OR ((("acs symposium sieds") OR ("acs symposium series"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"bacus symposium iii\") or (((\"acs symposium ii\") OR (\"lakes symposium ii\"))))) or (((\"acs symposium sieds\") or (\"acs symposium series\"))))*".
• Removing quotes may allow a broader search: (((( bacus symposium iii ) or ((( acs symposium ii ) OR ( lakes symposium ii ))))) or ((( acs symposium sieds ) or ( acs symposium series ))))*.