Perhaps you should try some spelling variations:
decrease changing » decreases handling (Expand search), decrease candida (Expand search), decrease lodging (Expand search)
changing pattern » changing patterns (Expand search), banding pattern (Expand search), planting pattern (Expand search)
decreased sperm » decreased sleep (Expand search)
risk decreased » risk decreases (Expand search), is decreased (Expand search), cross decreased (Expand search)
sperm decrease » term decrease (Expand search), speed decrease (Expand search), speed decreases (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search), _ decrease (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease risk decreased sperm decrease ) OR ( decrease the decrease changing pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease risk decreased sperm decrease ) OR ( decrease the decrease changing pattern ))*.