Perhaps you should try some spelling variations:
"aaas symposium series" » "aaas symposium sss", "aaas symposium spire", "aaas symposium ssbse", "cas symposium series", "gras symposium series", "iass symposium series"
"bacus symposium series" » "bacus symposium sss", "bacus symposium spire", "bacus symposium ssbse"
"acs symposium semi" » "acs symposium sss", "acs symposium sagt", "lakes symposium semi", "games symposium semi", "gauss symposium semi"
"acs symposium sas" » "lakes symposium sas", "games symposium sas", "gauss symposium sas", "acs symposium sans", "acs symposium sams"
"das symposium sas" » "das symposion sas", "texas symposium sas", "lakes symposium sas", "das symposium sans", "das 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: (("aaas symposium series") OR ((((("acs symposium semi") OR ((("acs symposium sas") OR ("das symposium sas"))))) OR ("bacus symposium series")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"aaas symposium series\") or (((((\"acs symposium semi\") or (((\"acs symposium sas\") OR (\"das symposium sas\"))))) or (\"bacus symposium series\"))))".
• Removing quotes may allow a broader search: (( aaas symposium series ) or ((((( acs symposium semi ) or ((( acs symposium sas ) OR ( das symposium sas ))))) or ( bacus symposium series )))).
• Adding a wildcard symbol may retrieve word variants: (("aaas symposium series") or ((((("acs symposium semi") or ((("acs symposium sas") OR ("das symposium sas"))))) or ("bacus symposium series"))))*.