Perhaps you should try some spelling variations:
"abacus symposium sss" » "acs symposium sss", "spaces symposium sss", "lakes symposium sss", "abacus symposium sas"
"aaas symposium semi" » "das symposium semi", "acs symposium semi", "cas symposium semi", "aaas symposium sas", "aaas symposium sagt"
"bacus symposium sss" » "bacus symposium sas"

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 semi") OR ((("abacus symposium sss") OR ("bacus symposium sss")))).
• Removing quotes may allow a broader search: (( aaas symposium semi ) or ((( abacus symposium sss ) or ( bacus symposium sss )))).
• Adding a wildcard symbol may retrieve word variants: (("aaas symposium semi") or ((("abacus symposium sss") or ("bacus symposium sss"))))*.