Perhaps you should try some spelling variations:
"c largest decrease" » "c larger decrease" (Expand Search), "c marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "a largest decrease" (Expand Search), "b largest decrease" (Expand Search)
"a marker decrease" » "a marked decrease" (Expand Search), "a larger decrease" (Expand Search), "a marked increase" (Expand Search), "_ marker decrease" (Expand Search), "_ markers decrease" (Expand Search)
"c large decrease" » "c larger decrease" (Expand Search), "c marked decrease" (Expand Search), "c large increases" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "b 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: (((("c largest decrease") OR ("c large decrease"))) OR ("a marker decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"c largest decrease\") OR (\"c large decrease\"))) OR (\"a marker decrease\"))".
• Removing quotes may allow a broader search: (((( c largest decrease ) OR ( c large decrease ))) OR ( a marker decrease )).
• Adding a wildcard symbol may retrieve word variants: (((("c largest decrease") OR ("c large decrease"))) OR ("a marker decrease"))*.