Perhaps you should try some spelling variations:
"acs symposium ismis" » "acs symposium isaac", "acs symposium isvc", "bacus symposium ismis", "das symposium ismis", "gauss symposium ismis"
"games symposium ismis" » "games symposium isaac", "games symposium isvc", "gauss symposium ismis", "bacus symposium ismis", "das symposium ismis"
"lakes symposium ii" » "bacus symposium ii", "lakes symposium iv", "lakes symposium i", "lakes symposium isvc"
"das symposion sss" » "das symposium sss", "das symposion des", "das symposion aus"

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