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