Perhaps you should try some spelling variations:
decrease owing » decrease lodging (Expand search), decrease during (Expand search), decrease with (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), and decrease (Expand search)
owing insects » growing insects (Expand search), boring insects (Expand search), chewing insects (Expand search)
in decreased » is decreased (Expand search), in deceased (Expand search), and decreased (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (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 in decreased to decrease ) OR ( decrease rate decrease owing insects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decreased to decrease ) OR ( decrease rate decrease owing insects ))*.