Perhaps you should try some spelling variations:
"bacus symposium series" » "bacus symposium semi", "bacus symposium sss", "bacus symposium spire"
"acs symposium iws" » "games symposium iws", "gauss symposium iws", "chaos symposium iws", "acs symposium irs", "acs symposium ius", "acs symposium irps"
"das symposium sas" » "das symposion sas", "texas symposium sas", "npss symposium sas", "das symposium sans", "das symposium sams"
"lakes symposium sas" » "lakes symposium sans", "lakes symposium sams"

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