Perhaps you should try some spelling variations:
"aaas symposium series" » "aaas symposium sss", "aaas symposium spire", "das symposium series", "cas symposium series", "gras symposium series"
"bacus symposium series" » "bacus symposium sss", "bacus symposium spire"
"bacus symposium ssbse" » "bacus symposium sss", "bacus symposium spire"
"acs symposium semi" » "acs symposium sss", "acs symposium sagt", "das symposium semi", "lakes symposium semi", "games symposium semi"
"acs symposium sas" » "das symposium sas", "lakes symposium sas", "games symposium sas", "acs symposium sans", "acs 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 ((("bacus symposium series") OR ("bacus symposium ssbse")))))).
• 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 (((\"bacus symposium series\") OR (\"bacus symposium ssbse\"))))))".
• Removing quotes may allow a broader search: (( aaas symposium series ) or ((((( acs symposium semi ) or ( acs symposium sas ))) or ((( bacus symposium series ) OR ( bacus symposium ssbse )))))).
• Adding a wildcard symbol may retrieve word variants: (("aaas symposium series") or ((((("acs symposium semi") or ("acs symposium sas"))) or ((("bacus symposium series") OR ("bacus symposium ssbse"))))))*.