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

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 ("acs symposium isaac"))))) OR ((("das symposium sieds") OR ("games symposium sss")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acs symposium iv\") or (((\"acs symposium isvc\") OR (\"acs symposium isaac\"))))) or (((\"das symposium sieds\") or (\"games symposium sss\"))))".
• Removing quotes may allow a broader search: (((( acs symposium iv ) or ((( acs symposium isvc ) OR ( acs symposium isaac ))))) or ((( das symposium sieds ) or ( games symposium sss )))).
• Adding a wildcard symbol may retrieve word variants: (((("acs symposium iv") or ((("acs symposium isvc") OR ("acs symposium isaac"))))) or ((("das symposium sieds") or ("games symposium sss"))))*.