Perhaps you should try some spelling variations:
methods effect » methods affect (Expand search), method effect (Expand search), method effects (Expand search)
dense methods » dense method (Expand search), defense methods (Expand search), dance methods (Expand search)
decrease pro » decrease or (Expand search), decrease food (Expand search), decrease in (Expand search)
pro decrease » to decrease (Expand search), or decrease (Expand search), price decrease (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (Expand search)
on decrease » on decreased (Expand search), of decrease (Expand search), or decrease (Expand search)
and dense » and sense (Expand search), and defense (Expand search), and dengue (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease pro decrease on decrease ) OR ( decrease AND dense methods effect ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease pro decrease on decrease ) OR ( decrease and dense methods effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease pro decrease on decrease ) OR ( decrease and dense methods effect ))*.