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

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