Perhaps you should try some spelling variations:
"big ofthe conference" » "big oate conference", "big atthe conference", "big fifth conference", "big often conference", "big other conference"
"breaking open conference" » "breaking european conference", "breaking europe conference", "breaking asian conference", "breaking down conference", "breaking out conference"

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: "((\"breaking open conference\") OR (\"big ofthe conference\"))".
• Removing quotes may allow a broader search: (( breaking open conference ) OR ( big ofthe conference )).
• Adding a wildcard symbol may retrieve word variants: (("breaking open conference") OR ("big ofthe conference"))*.