Perhaps you should try some spelling variations:
"das symposium sieds" » "das symposium series", "das symposium sas", "das symposium sss", "das symposion sieds", "texas symposium sieds", "npss symposium sieds"
"bacus symposium sieds" » "bacus symposium series", "bacus symposium sas", "bacus symposium sss"
"acs symposium iws" » "games symposium iws", "gauss symposium iws", "chaos symposium iws", "acs symposium ius", "acs symposium irps", "acs symposium iv"
"lakes symposium ies" » "lakes symposium ius", "lakes symposium ieee", "lakes symposium irps"
"lakes symposium irs" » "lakes symposium iv", "lakes symposium i", "lakes symposium ii"

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 iws") OR ((("lakes symposium ies") OR ("lakes symposium irs"))))) OR ((("das symposium sieds") OR ("bacus symposium sieds")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acs symposium iws\") or (((\"lakes symposium ies\") OR (\"lakes symposium irs\"))))) or (((\"das symposium sieds\") or (\"bacus symposium sieds\"))))".
• Removing quotes may allow a broader search: (((( acs symposium iws ) or ((( lakes symposium ies ) OR ( lakes symposium irs ))))) or ((( das symposium sieds ) or ( bacus symposium sieds )))).
• Adding a wildcard symbol may retrieve word variants: (((("acs symposium iws") or ((("lakes symposium ies") OR ("lakes symposium irs"))))) or ((("das symposium sieds") or ("bacus symposium sieds"))))*.