Perhaps you should try some spelling variations:
"backs symposium series" » "backs symposium semi", "backs symposium sas", "backs symposium ssbse", "bacus symposium series", "acs symposium series", "bibos symposium series"
"spaces symposium sss" » "sources symposium sss", "spanish symposium sss", "bacus symposium sss", "spaces symposium sas"
"backs symposium spire" » "bacus symposium spire", "acs symposium spire", "bibos symposium spire"
"lakes symposium spire" » "bacus symposium spire"

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