Perhaps you should try some spelling variations:
"c largest decrease" » "c largest decreases" (Expand Search), "c larger decrease" (Expand Search), "c marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "c large decrease" (Expand Search)
"_ large decrease" » "_ marked decrease" (Expand Search), "_ large increases" (Expand Search), "_ large degree" (Expand Search)
"9 age increased" » "9 rate increased" (Expand Search), "9 use increased" (Expand Search), "9 large increases" (Expand Search), "_ age increased" (Expand Search), "g age increased" (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: "((\"c largest decrease\") OR (((\"_ large decrease\") OR (\"9 age increased\"))))~".
• Removing quotes may allow a broader search: (( c largest decrease ) OR ((( _ large decrease ) OR ( 9 age increased ))))~.
• Adding a wildcard symbol may retrieve word variants: (("c largest decrease") OR ((("_ large decrease") OR ("9 age increased"))))*.