Perhaps you should try some spelling variations:
"acs symposium ismisi" » "acs symposium ismis", "acs symposium iscis", "acs symposium isms", "das symposium ismisi", "lakes symposium ismisi", "games symposium ismisi"
"bacus symposium sams" » "bacus symposium rams", "bacus symposium ams", "bacus symposium wams"
"acs symposium ii" » "das symposium ii", "lakes symposium ii", "games symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"
"bacus symposium sas" » "bacus symposium sans"

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: (((("acs symposium ismisi") OR ("acs symposium ii"))) OR ((("bacus symposium sas") OR ("bacus symposium sams")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acs symposium ismisi\") or (\"acs symposium ii\"))) or (((\"bacus symposium sas\") OR (\"bacus symposium sams\"))))".
• Removing quotes may allow a broader search: (((( acs symposium ismisi ) or ( acs symposium ii ))) or ((( bacus symposium sas ) OR ( bacus symposium sams )))).
• Adding a wildcard symbol may retrieve word variants: (((("acs symposium ismisi") or ("acs symposium ii"))) or ((("bacus symposium sas") OR ("bacus symposium sams"))))*.