Perhaps you should try some spelling variations:
maturation decreases » modulation decreases (Expand search), malnutrition decreases (Expand search), maturation degree (Expand search)
decrease maturation » decrease migration (Expand search), cheese maturation (Expand search), protease maturation (Expand search)
decrease vision » decreasing vision (Expand search), decrease asian (Expand search), decrease soon (Expand search)
vision object » visual object (Expand search), design object (Expand search), vision insect (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain 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 maturation decreases in decrease ) OR ( decrease _ decrease vision object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease maturation decreases in decrease ) OR ( decrease _ decrease vision object ))*.