Perhaps you should try some spelling variations:
"bacus symposium series" » "bacus symposium semi", "bacus symposium sss", "bacus symposium spire"
"acs symposium iws" » "das symposium iws", "games symposium iws", "gauss symposium iws", "acs symposium irs", "acs symposium ius", "acs symposium irps"
"lakes symposium sas" » "lakes symposium sans", "lakes symposium sams"

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 iws") OR ((("lakes symposium sas") OR ("bacus symposium series")))).
• Removing quotes may allow a broader search: (( acs symposium iws ) or ((( lakes symposium sas ) or ( bacus symposium series )))).
• Adding a wildcard symbol may retrieve word variants: (("acs symposium iws") or ((("lakes symposium sas") or ("bacus symposium series"))))*.