Perhaps you should try some spelling variations:
features analysis » measures analysis
feature analysis » texture analysis, capture analysis, failure analysis
liver segment » liver segments, liver segmental, linear segment

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: "liver segment ((features analysis) OR (feature analysis))".
• Adding a wildcard symbol may retrieve word variants: liver segment ((features analysis) OR (feature analysis))*.