Perhaps you should try some spelling variations:
"significantly related decrease" » "significantly correlated decrease" (Expand Search), "significantly elevated decrease" (Expand Search), "significantly reduced decrease" (Expand Search), "significantly reported decrease" (Expand Search), "significantly related disease" (Expand Search), "significantly greater decrease" (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.

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