Perhaps you should try some spelling variations:
wisconsin operation » wisconsin proton, discontinued operation, wisconsin comparative
stable assembly » table assembly, stage assembly, cable assembly
scale assembly » cage assembly, snare assembly, stage assembly

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: (( wisconsin operation assembly ) OR ( wisconsin ((stable assembly) OR (scale assembly)) )).
• Adding a wildcard symbol may retrieve word variants: (( wisconsin operation assembly ) or ( wisconsin ((stable assembly) or (scale assembly)) ))*.