Perhaps you should try some spelling variations:
"acs symposium ismis" » "acs symposium isaac", "acs symposium isvc", "lakes symposium ismis", "games symposium ismis", "gauss symposium ismis"
"das symposium semi" » "das symposium sas", "das symposium sss", "das symposium sagt", "texas symposium semi", "lakes symposium semi", "npss symposium semi"
"bacus symposium iv" » "bacus symposium isvc", "abacus symposium iv", "backs symposium iv", "baus symposium iv"
"das symposion ii" » "das symposion vii", "das symposion im", "das symposion i"

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: (((("bacus symposium iv") OR ((("das symposion ii") OR ("acs symposium ismis"))))) OR ("das symposium semi")).
• Removing quotes may allow a broader search: (((( bacus symposium iv ) or ((( das symposion ii ) or ( acs symposium ismis ))))) or ( das symposium semi )).
• Adding a wildcard symbol may retrieve word variants: (((("bacus symposium iv") or ((("das symposion ii") or ("acs symposium ismis"))))) or ("das symposium semi"))*.