Perhaps you should try some spelling variations:
abacus symposium » bacus symposium, acs symposium, aaas symposium
symposium series » symposium semi, symposium sas, symposium sss
symposium sagt » symposium sas, symposium sss

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 sagt )).
• Adding a wildcard symbol may retrieve word variants: (( abacus symposium series ) or ( abacus symposium sagt ))*.