Perhaps you should try some spelling variations:
"computer system failure" » "computer systems failure"
"computer system failures" » "computer systems failures"
"computer system figures" » "computer systems figures", "computer system fires", "computer system features"

Try widening your search to All Fields.

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: (((("computer system failure") OR ("computer system failures"))) OR ("computer system figures")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"computer system failure\") OR (\"computer system failures\"))) or (\"computer system figures\"))".
• Removing quotes may allow a broader search: (((( computer system failure ) OR ( computer system failures ))) or ( computer system figures )).
• Adding a wildcard symbol may retrieve word variants: (((("computer system failure") OR ("computer system failures"))) or ("computer system figures"))*.