Perhaps you should try some spelling variations:
"spanish symposium semi" » "japanese symposium semi", "munich symposium semi", "speech symposium semi", "spanish symposium sss", "spanish symposium sagt"
"spaces symposium semi" » "sources symposium semi", "bacus symposium semi", "lakes symposium semi", "spaces symposium sss", "spaces symposium sagt"
"backs symposium sas" » "bacus symposium sas", "acs symposium sas", "lakes symposium sas", "backs symposium sans", "backs symposium sams"

You may be able to get more results by adjusting your search query.

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