Perhaps you should try some spelling variations:
"significantly mediate decrease" » "significantly mediated decrease" (Expand Search), "significantly predicted decrease" (Expand Search), "significantly mitigated decrease" (Expand Search), "significantly mean decrease" (Expand Search), "significantly mediated defense" (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.

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