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

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