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