Perhaps you should try some spelling variations:
"lakes symposium irs" » "bacus symposium irs", "lakes symposium iv", "lakes symposium i", "lakes symposium iii"
"das symposium sieds" » "das symposium series", "das symposium sas", "das symposium semi", "das symposion sieds", "bacus symposium sieds", "texas symposium sieds"
"acs symposium ii" » "bacus symposium ii", "games symposium ii", "gauss symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"
"acs symposium sss" » "bacus symposium sss", "games symposium sss", "gauss symposium sss", "acs symposium sas"

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