Perhaps you should try some spelling variations:
"games symposium iv" » "lakes symposium iv", "gauss symposium iv", "bacus symposium iv", "games symposium isvc", "games symposium isvcv"
"das symposium sans" » "das symposium san", "das symposium ans", "das symposium plans", "das symposion sans", "bacus symposium sans", "texas symposium sans"
"acs symposium irs" » "bacus symposium irs", "lakes symposium irs", "gauss symposium irs", "acs symposium ii", "acs symposium iii", "acs symposium ida", "acs symposium isvcrs"
"acs symposium i" » "bacus symposium i", "lakes symposium i", "gauss symposium i", "acs symposium isvc"
"das symposium sas" » "das symposion sas", "bacus symposium sas", "texas symposium sas", "das 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: (((((("acs symposium irs") OR ("acs symposium i"))) OR ("games symposium iv"))) OR ((("das symposium sas") OR ("das symposium sans")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"acs symposium irs\") or (\"acs symposium i\"))) or (\"games symposium iv\"))) or (((\"das symposium sas\") OR (\"das symposium sans\"))))".
• Removing quotes may allow a broader search: (((((( acs symposium irs ) or ( acs symposium i ))) or ( games symposium iv ))) or ((( das symposium sas ) OR ( das symposium sans )))).
• Adding a wildcard symbol may retrieve word variants: (((((("acs symposium irs") or ("acs symposium i"))) or ("games symposium iv"))) or ((("das symposium sas") OR ("das symposium sans"))))*.