Perhaps you should try some spelling variations:
"acs symposium series" » "acs symposium semi", "acs symposium sss", "acs symposium spire", "bacus symposium series", "das symposium series", "lakes symposium series"
"texts symposium sas" » "sexta symposium sas", "steels symposium sas", "cells symposium sas", "texts symposium sans", "texts symposium sams"
"aaas symposium sas" » "das symposium sas", "cas symposium sas", "gras symposium sas", "aaas symposium sans", "aaas symposium sams"
"texas symposium sas" » "texas symposium sans", "texas 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: (((("aaas symposium sas") OR ((("texas symposium sas") OR ("texts symposium sas"))))) OR ("acs symposium series")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"aaas symposium sas\") or (((\"texas symposium sas\") OR (\"texts symposium sas\"))))) or (\"acs symposium series\"))".
• Removing quotes may allow a broader search: (((( aaas symposium sas ) or ((( texas symposium sas ) OR ( texts symposium sas ))))) or ( acs symposium series )).
• Adding a wildcard symbol may retrieve word variants: (((("aaas symposium sas") or ((("texas symposium sas") OR ("texts symposium sas"))))) or ("acs symposium series"))*.