Perhaps you should try some spelling variations:
decreased functional » increased functional (Expand search), increase functional (Expand search), based functional (Expand search)
functional decrease » functional decline (Expand search), functional cereal (Expand search), functional areas (Expand search)
input processing » nut processing (Expand search), export processing (Expand search), post processing (Expand search)
to decreased » to decrease (Expand search), to increased (Expand search), is decreased (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 decrease input processing ) OR ( decrease to decreased functional decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease input processing ) OR ( decrease to decreased functional decrease ))*.