Perhaps you should try some spelling variations:
"texts symposium series" » "texts symposium semi", "texts symposium sss", "texts symposium spire", "texas symposium series", "sexta symposium series", "steels symposium series"
"bacus symposium sans" » "bacus symposium san", "bacus symposium ans", "bacus symposium plans"
"bacus symposium sas" » "bacus symposium sams"

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