Perhaps you should try some spelling variations:
"bacus symposium iscis" » "bacus symposium ismis", "bacus symposium isco", "bacus symposium ics", "abacus symposium iscis", "backs symposium iscis", "baus symposium iscis"
"das symposium sas" » "das symposion sas", "texas symposium sas", "das symposium sans", "das symposium sams"
"lakes symposium ii" » "lakes symposium iv", "lakes symposium i", "lakes symposium ismis"
"npss symposium sas" » "npss symposium sans", "npss 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: (((("bacus symposium iscis") OR ("lakes symposium ii"))) OR ((("das symposium sas") OR ("npss symposium sas")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"bacus symposium iscis\") or (\"lakes symposium ii\"))) or (((\"das symposium sas\") OR (\"npss symposium sas\"))))".
• Removing quotes may allow a broader search: (((( bacus symposium iscis ) or ( lakes symposium ii ))) or ((( das symposium sas ) OR ( npss symposium sas )))).
• Adding a wildcard symbol may retrieve word variants: (((("bacus symposium iscis") or ("lakes symposium ii"))) or ((("das symposium sas") OR ("npss symposium sas"))))*.