Perhaps you should try some spelling variations:
"backs symposium series" » "backs symposium semi", "backs symposium sss", "backs symposium spire", "bacus symposium series", "acs symposium series", "lakes symposium series"
"spaces symposium sans" » "sources symposium sans", "spanish symposium sans", "bacus symposium sans", "spaces symposium san", "spaces symposium ans", "spaces symposium plans"
"backs symposium sans" » "bacus symposium sans", "acs symposium sans", "lakes symposium sans", "backs symposium san", "backs symposium ans", "backs symposium plans"
"backs symposium sas" » "bacus symposium sas", "acs symposium sas", "lakes symposium sas", "backs 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: (("backs symposium series") OR ((((("backs symposium sans") OR ("backs symposium sas"))) OR ("spaces symposium sans")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"backs symposium series\") or (((((\"backs symposium sans\") OR (\"backs symposium sas\"))) or (\"spaces symposium sans\"))))".
• Removing quotes may allow a broader search: (( backs symposium series ) or ((((( backs symposium sans ) OR ( backs symposium sas ))) or ( spaces symposium sans )))).
• Adding a wildcard symbol may retrieve word variants: (("backs symposium series") or ((((("backs symposium sans") OR ("backs symposium sas"))) or ("spaces symposium sans"))))*.