Perhaps you should try some spelling variations:
"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)
"significantly linked decrease" » "significantly longer decrease" (Expand Search), "significantly altered decrease" (Expand Search), "significantly higher decrease" (Expand Search), "significantly marked decrease" (Expand Search), "significantly linear decrease" (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 better decrease") OR ("significantly linked decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"significantly better decrease\") OR (\"significantly linked decrease\"))*".
• Removing quotes may allow a broader search: (( significantly better decrease ) OR ( significantly linked decrease ))*.