Perhaps you should try some spelling variations:
"games symposium iws" » "lakes symposium iws", "gauss symposium iws", "cities symposium iws", "games symposium irs", "games symposium ius", "games symposium irps"
"bacus symposium sieds" » "bacus symposium series", "bacus symposium sss", "bacus symposium semi"
"acs symposium iws" » "lakes symposium iws", "gauss symposium iws", "chaos symposium iws", "acs symposium irs", "acs symposium ius", "acs symposium irps"
"das symposium sas" » "texas symposium sas", "lakes symposium sas", "npss symposium sas"
"das symposion sas" » "das symposion am", "das symposion des", "das symposion aus"

Try widening your search to All Fields.

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