Perhaps you should try some spelling variations:
"failure patient analysis" » "failure patients analysis", "failure patent analysis", "failure latent analysis", "failure treatment analysis"
"failure state analysis" » "failure static analysis", "failure strain analysis", "failure stroke analysis", "failure rates analysis"
"failure late analysis" » "failure latex analysis", "failure plate analysis", "failure later analysis", "failure rates analysis", "failure large analysis", "failure laws analysis"
"failure rate analysis" » "failure ratio analysis"

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: (("failure patient analysis") OR ((("failure late analysis") OR ((("failure rate analysis") OR ("failure state analysis")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"failure patient analysis\") or (((\"failure late analysis\") or (((\"failure rate analysis\") OR (\"failure state analysis\"))))))".
• Removing quotes may allow a broader search: (( failure patient analysis ) or ((( failure late analysis ) or ((( failure rate analysis ) OR ( failure state analysis )))))).
• Adding a wildcard symbol may retrieve word variants: (("failure patient analysis") or ((("failure late analysis") or ((("failure rate analysis") OR ("failure state analysis"))))))*.