Perhaps you should try some spelling variations:
"significantly reduce decrease" » "significantly reduced decrease" (Expand Search), "significantly greater decrease" (Expand Search), "significantly enhance decrease" (Expand Search), "significantly reduce disease" (Expand Search), "significantly reduce depressive" (Expand Search), "significantly induces decreased" (Expand Search)
"significantly better decrease" » "significantly greater decrease" (Expand Search), "significantly higher decrease" (Expand Search), "significantly lower decrease" (Expand Search), "significantly teer decrease" (Expand Search), "significantly between decreased" (Expand Search)

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

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