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), "a largest decrease" (Expand Search), "i largest decrease" (Expand Search)
"c large decrease" » "c marked decrease" (Expand Search), "c large increases" (Expand Search), "c large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "i large decrease" (Expand Search)
"a marked increase" » "a marker increase" (Expand Search), "_ marked increase" (Expand Search), "a market increase" (Expand Search), "a marked increased" (Expand Search)

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

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