Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during insects » boring insects (Expand search), suking insects (Expand search), inducing insects (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
decrease akt » decrease at (Expand search), decrease after (Expand search), decreased and (Expand search)
akt decrease » not decrease (Expand search), any decrease (Expand search), salt decreases (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 with decrease AND decrease ) OR ( decrease akt decrease during insects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease with decrease and decrease ) OR ( decrease akt decrease during insects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease with decrease and decrease ) OR ( decrease akt decrease during insects ))*.