Perhaps you should try some spelling variations:
"lakes symposium semi" » "bacus symposium semi", "lakes symposium sss", "lakes symposium sagt"
"aaas symposium sas" » "das symposium sas", "cas symposium sas", "gras symposium sas", "aaas symposium sans", "aaas symposium sams"
"acs symposium semi" » "acs symposium sss", "acs symposium sagt", "bacus symposium semi", "das symposium semi", "games symposium semi"
"texas symposium sas" » "texas symposium sans", "texas symposium sams", "texts symposium sas"

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