Perhaps you should try some spelling variations:
symposium series » symposium semi, symposium sas, symposium sss
acs symposium » bacus symposium, das symposium, lakes symposium
symposium irs » symposium iv, symposium i, symposium ii

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 irs ) OR ( acs symposium series )).
• Adding a wildcard symbol may retrieve word variants: (( acs symposium irs ) or ( acs symposium series ))*.