Perhaps you should try some spelling variations:
ifmbe proceedings » some proceedings, issue proceedings, time proceedings
image proceedings » age proceedings, imaging proceedings, climate proceedings
ieee proceedings » late proceedings, some proceedings, care proceedings
life proceedings » late proceedings, some proceedings, care 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: ((((((ifmbe proceedings) OR (ieee proceedings))) OR (image proceedings))) OR (life proceedings)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((ifmbe proceedings) OR (ieee proceedings))) or (image proceedings))) or (life proceedings))".
• Adding a wildcard symbol may retrieve word variants: ((((((ifmbe proceedings) OR (ieee proceedings))) or (image proceedings))) or (life proceedings))*.