Perhaps you should try some spelling variations:
decrease response » decreased response (Expand search), increases response (Expand search), increased response (Expand search)
response decrease » response defense (Expand search)
decrease clogging » decrease lodging (Expand search), decrease flooding (Expand search), decrease owing (Expand search)
clogging effect » logging affect (Expand search), loading effect (Expand search), cooling effect (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not 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 toc decrease response decrease ) OR ( decrease OR decrease clogging effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease response decrease ) OR ( decrease OR decrease clogging effect ))*.