Perhaps you should try some spelling variations:
"aaas symposium series" » "aaas symposium sas", "aaas symposium spire", "aaas symposium ssbse", "das symposium series", "cas symposium series", "gras symposium series"
"lakes symposium semi" » "bacus symposium semi", "lakes symposium sas", "lakes symposium sagt"
"aaas symposium sss" » "das symposium sss", "cas symposium sss", "gras symposium sss", "aaas symposium sas"
"acs symposium semi" » "acs symposium sas", "acs symposium sagt", "bacus symposium semi", "das symposium semi", "games symposium semi"

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