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