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)
decrease owing » decrease lodging (Expand search), decrease during (Expand search), decrease in (Expand search)
owing decrease » taping decrease (Expand search), will decrease (Expand search), skins decrease (Expand search)
hc processing » at processing (Expand search), ohmic processing (Expand search), rock processing (Expand search)
decrease to » decrease toc (Expand search), decreased to (Expand search), decrease the (Expand search)
decrease hc » decrease the (Expand search), decrease hiv (Expand search), decrease toc (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 owing decrease to decrease ) OR ( decreased functional decrease hc processing ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease owing decrease to decrease ) OR ( decreased functional decrease hc processing ))*.