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 rate analysis", "failure strain analysis", "failure stroke analysis"
"failure plate analysis" » "failure plane analysis", "failure plants analysis", "failure rate analysis", "failure platex analysis", "failure plater analysis", "failure prate analysis", "failures plates analysis", "failure update analysis"
"failure late analysis" » "failure latex analysis", "failure later analysis", "failure rate analysis", "failure rates analysis", "failure large 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 state analysis"))) OR ("failure plate analysis")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"failure patient analysis\") or (((((\"failure late analysis\") OR (\"failure state analysis\"))) or (\"failure plate analysis\"))))".
• Removing quotes may allow a broader search: (( failure patient analysis ) or ((((( failure late analysis ) OR ( failure state analysis ))) or ( failure plate analysis )))).
• Adding a wildcard symbol may retrieve word variants: (("failure patient analysis") or ((((("failure late analysis") OR ("failure state analysis"))) or ("failure plate analysis"))))*.