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