Perhaps you should try some spelling variations:
"failure treatment analysis" » "failure investment analysis", "future treatment analysis"
"failure patent analysis" » "failure content analysis", "failure point analysis", "failure event analysis", "failure patient analysis", "failure patients analysis", "failure agent analysis"

You may be able to get more results by adjusting your search query.

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