Perhaps you should try some spelling variations:
some proceedings » whole proceedings, late proceedings
ieee proceedings » late proceedings, care proceedings, science proceedings
life proceedings » late proceedings, care proceedings, whole proceedings

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: ((((some proceedings) OR (ieee proceedings))) OR (life proceedings)).
• Adding a wildcard symbol may retrieve word variants: ((((some proceedings) or (ieee proceedings))) or (life proceedings))*.