Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during disease » urine disease (Expand search), ring disease (Expand search), using disease (Expand search)
decrease focal » decreases local (Expand search), decrease fetal (Expand search), decrease total (Expand search)
focal objects » social objects (Expand search), local object (Expand search), real objects (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease OR decrease during disease ) OR ( decrease AND decrease focal objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease or decrease during disease ) OR ( decrease AND decrease focal objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease or decrease during disease ) OR ( decrease AND decrease focal objects ))*.