Perhaps you should try some spelling variations:
"significantly greater decrease" » "significantly correlated decrease" (Expand Search), "significantly increased decrease" (Expand Search), "significantly higher decrease" (Expand Search), "significantly greatest decrease" (Expand Search), "significantly greater increase" (Expand Search), "significantly greater disease" (Expand Search)
"significantly linear decrease" » "significant linear decrease" (Expand Search), "significantly lower decrease" (Expand Search), "significantly longer decrease" (Expand Search), "significantly linear increase" (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 linear decrease\") OR (\"significantly greater decrease\"))~".
• Removing quotes may allow a broader search: (( significantly linear decrease ) OR ( significantly greater decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (("significantly linear decrease") OR ("significantly greater decrease"))*.