Perhaps you should try some spelling variations:
"cities symposium ivi" » "circuits symposium ivi", "metrics symposium ivi", "lakes symposium ivi", "cities symposium iv", "cities symposium ii", "cities symposium iii", "cities symposium ivvi", "cities symposium isvcvi"
"gauss symposium isaac" » "games symposium isaac", "lakes symposium isaac", "npss symposium isaac", "gauss symposium ivsaac", "gauss symposium isvcsaac"
"das symposion sieds" » "das symposium sieds", "das symposion des", "das symposion wien"
"bacus symposium i" » "bacus symposium iv", "bacus symposium isvc", "abacus symposium i", "backs symposium i", "baus symposium i"

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: (((("bacus symposium i") OR ((("cities symposium ivi") OR ("gauss symposium isaac"))))) OR ("das symposion sieds")).
• Removing quotes may allow a broader search: (((( bacus symposium i ) or ((( cities symposium ivi ) or ( gauss symposium isaac ))))) or ( das symposion sieds )).
• Adding a wildcard symbol may retrieve word variants: (((("bacus symposium i") or ((("cities symposium ivi") or ("gauss symposium isaac"))))) or ("das symposion sieds"))*.