Perhaps you should try some spelling variations:
symposium series » symposium semi, symposium sas, symposium sss
gauss symposium » games symposium, bacus symposium, lakes symposium
baus symposium » bacus symposium, brass symposium, das symposium

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( baus symposium series ) OR ( gauss symposium series ))".
• Adding a wildcard symbol may retrieve word variants: (( baus symposium series ) OR ( gauss symposium series ))*.