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

Try widening your search to All Fields.

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