Perhaps you should try some spelling variations:
decrease response » decreased response (Expand search), increased response (Expand search), increases response (Expand search)
response defense » response decrease (Expand search), resource defense (Expand search)
in connectivity » and connectivity (Expand search), air connectivity (Expand search), of connectivity (Expand search)
on decrease » on decreased (Expand search), or decrease (Expand search), and decrease (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
defense on » defense of (Expand search), defense in (Expand search), defense and (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 response defense on decrease ) OR ( decrease of decrease in connectivity ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease response defense on decrease ) OR ( decrease of decrease in connectivity ))*.