Perhaps you should try some spelling variations:
"lakes symposium ismis" » "bacus symposium ismis", "lakes symposium isaac", "lakes symposium isvc"
"backs symposium iv" » "bacus symposium iv", "spaces symposium iv", "bibos symposium iv", "backs symposium isvc"
"acs symposium semi" » "acs symposium sas", "acs symposium sss", "acs symposium sagt", "bacus symposium semi", "games symposium semi", "gauss symposium semi"
"das symposium ii" » "das symposion ii", "bacus symposium ii", "texas symposium ii", "das symposium i", "das symposium isvc", "das symposium ieee"

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 iv") OR ((("das symposium ii") OR ("lakes symposium ismis"))))) OR ("acs symposium semi")).
• Removing quotes may allow a broader search: (((( backs symposium iv ) or ((( das symposium ii ) or ( lakes symposium ismis ))))) or ( acs symposium semi )).
• Adding a wildcard symbol may retrieve word variants: (((("backs symposium iv") or ((("das symposium ii") or ("lakes symposium ismis"))))) or ("acs symposium semi"))*.