Perhaps you should try some spelling variations:
"_ ants decrease" » "_ anti decrease" (Expand Search), "_ ants decreased" (Expand Search), "_ ants increase" (Expand Search)
"5 nn decrease" » "k nn decrease" (Expand Search), "_ nn decrease" (Expand Search), "5 nn decreased" (Expand Search), "5 nn increase" (Expand Search)
"a point decrease" » "a point decreased" (Expand Search), "a point increase" (Expand Search)
"5 fold decrease" » "5 fold decreased" (Expand Search), "5 fold increase" (Expand Search), "5 food decrease" (Expand Search), "5 old decrease" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("5 nn decrease") OR ("_ ants decrease"))) OR ((("a point decrease") OR ("5 fold decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"5 nn decrease\") OR (\"_ ants decrease\"))) OR (((\"a point decrease\") OR (\"5 fold decrease\"))))*".
• Removing quotes may allow a broader search: (((( 5 nn decrease ) OR ( _ ants decrease ))) OR ((( a point decrease ) OR ( 5 fold decrease ))))*.