Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease the » decreases the (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search)
in maple » in maize (Expand search), in macae (Expand search), _ maple (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 AND decrease during decrease ) OR ( decrease the decrease in maple ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease during decrease ) OR ( decrease the decrease in maple ))*.