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

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"abacus symposium series\") OR (((\"acs symposium semi\") OR (\"bacus symposium sagt\"))))".
• Removing quotes may allow a broader search: (( abacus symposium series ) OR ((( acs symposium semi ) OR ( bacus symposium sagt )))).
• Adding a wildcard symbol may retrieve word variants: (("abacus symposium series") OR ((("acs symposium semi") OR ("bacus symposium sagt"))))*.