Perhaps you should try some spelling variations:
"a largest decrease" » "a largest decreases" (Expand Search), "a larger decrease" (Expand Search), "_ largest decrease" (Expand Search), "a large decrease" (Expand Search), "a latest decrease" (Expand Search)
"a marked decrease" » "a marked increase" (Expand Search), "a marker decrease" (Expand Search), "_ marked decrease" (Expand Search), "a market decrease" (Expand Search)
"i large decrease" » "i large increases" (Expand Search), "i large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "via large decrease" (Expand Search)

Try widening your search to All Fields.

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

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