Perhaps you should try some spelling variations:
"significantly altered decrease" » "significantly affected decrease" (Expand Search), "significantly elevated decrease" (Expand Search), "significantly lower decrease" (Expand Search), "significantly altered release" (Expand Search), "significantly observed decrease" (Expand Search), "significantly teer 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)

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

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