Perhaps you should try some spelling variations:
"significantly longer decrease" » "significantly lower decrease" (Expand Search), "significantly larger decrease" (Expand Search), "significantly higher decrease" (Expand Search), "significantly linear decrease" (Expand Search), "significantly largest decrease" (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 longer decrease") OR ("significantly better decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"significantly longer decrease\") OR (\"significantly better decrease\"))".
• Removing quotes may allow a broader search: (( significantly longer decrease ) OR ( significantly better decrease )).
• Adding a wildcard symbol may retrieve word variants: (("significantly longer decrease") OR ("significantly better decrease"))*.