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