Perhaps you should try some spelling variations:
"das symposium sieds" » "das symposium series", "das symposium sas", "das symposium semi", "das symposion sieds", "bacus symposium sieds", "texas symposium sieds"
"acs symposium iii" » "bacus symposium iii", "lakes symposium iii", "games symposium iii", "acs symposium iv", "acs symposium i", "acs symposium ismis", "acs symposium ivi", "acs symposium ii", "acs symposium ismisi"
"acs symposium ii" » "bacus symposium ii", "lakes symposium ii", "games symposium ii", "acs symposium iv", "acs symposium i", "acs symposium ismis"
"das symposium sss" » "das symposion sss", "bacus symposium sss", "texas symposium sss", "das 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: (((("acs symposium iii") OR ("acs symposium ii"))) OR ((("das symposium sieds") OR ("das symposium sss")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acs symposium iii\") or (\"acs symposium ii\"))) or (((\"das symposium sieds\") OR (\"das symposium sss\"))))".
• Removing quotes may allow a broader search: (((( acs symposium iii ) or ( acs symposium ii ))) or ((( das symposium sieds ) OR ( das symposium sss )))).
• Adding a wildcard symbol may retrieve word variants: (((("acs symposium iii") or ("acs symposium ii"))) or ((("das symposium sieds") OR ("das symposium sss"))))*.