Perhaps you should try some spelling variations:
"bacus symposium series" » "bacus symposium semi", "bacus symposium sas", "bacus symposium sss", "abacus symposium series", "backs symposium series", "baus symposium series"
"acs symposium series" » "acs symposium semi", "acs symposium sas", "acs symposium sss", "das symposium series", "games symposium series", "gauss symposium series"
"lakes symposium series" » "lakes symposium semi", "lakes symposium sas", "lakes 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: (("bacus symposium series") OR ((("acs symposium series") OR ("lakes symposium series"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bacus symposium series\") or (((\"acs symposium series\") OR (\"lakes symposium series\"))))*".
• Removing quotes may allow a broader search: (( bacus symposium series ) or ((( acs symposium series ) OR ( lakes symposium series ))))*.