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)
"i values increased" » "i cases increased" (Expand Search), "i dalys increased" (Expand Search), "i also increased" (Expand Search), "_ values increased" (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 ("i values increased"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"c largest decrease\") OR (\"c large decrease\"))) OR (\"i values increased\"))".
• Removing quotes may allow a broader search: (((( c largest decrease ) OR ( c large decrease ))) OR ( i values increased )).
• Adding a wildcard symbol may retrieve word variants: (((("c largest decrease") OR ("c large decrease"))) OR ("i values increased"))*.