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

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 ("bacus symposium semi"))) OR ("acs symposium sss"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"bacus symposium series\") OR (\"bacus symposium semi\"))) or (\"acs symposium sss\"))*".
• Removing quotes may allow a broader search: (((( bacus symposium series ) OR ( bacus symposium semi ))) or ( acs symposium sss ))*.