Perhaps you should try some spelling variations:
"apoptotic marked decrease" » "apoptotic late decrease" (Expand Search), "apoptotic marked increase" (Expand Search)
"apoptosis based decrease" » "apoptosis rate decrease" (Expand Search), "apoptosis rates decrease" (Expand Search), "apoptosis related decrease" (Expand Search), "apoptosis caused decreased" (Expand Search), "apoptosis based defense" (Expand Search)
"atomic volume decrease" » "diastolic volume decrease" (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("apoptotic marked decrease") OR ("apoptosis based decrease"))) OR ("atomic volume decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"apoptotic marked decrease\") OR (\"apoptosis based decrease\"))) OR (\"atomic volume decrease\"))".
• Removing quotes may allow a broader search: (((( apoptotic marked decrease ) OR ( apoptosis based decrease ))) OR ( atomic volume decrease )).
• Adding a wildcard symbol may retrieve word variants: (((("apoptotic marked decrease") OR ("apoptosis based decrease"))) OR ("atomic volume decrease"))*.