Perhaps you should try some spelling variations:
"acs symposium series" » "acs symposium semi", "acs symposium spire", "acs symposium ssbse", "das symposium series", "lakes symposium series", "gauss symposium series"
"games symposium sas" » "lakes symposium sas", "gauss symposium sas", "das symposium sas", "games symposium sans", "games symposium sams"
"acs symposium sas" » "das symposium sas", "lakes symposium sas", "gauss symposium sas", "acs symposium sans", "acs symposium sams"

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