Perhaps you should try some spelling variations:
"lakes symposium ies" » "bacus symposium ies", "lakes symposium irs", "lakes symposium ius", "lakes symposium iws"
"das symposium sieds" » "das symposium series", "das symposium sas", "das symposium sss", "das symposion sieds", "bacus symposium sieds", "texas symposium sieds"

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: (("lakes symposium ies") OR ("das symposium sieds")).
• Removing quotes may allow a broader search: (( lakes symposium ies ) or ( das symposium sieds )).
• Adding a wildcard symbol may retrieve word variants: (("lakes symposium ies") or ("das symposium sieds"))*.