Perhaps you should try some spelling variations:
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
decrease flock » decrease food (Expand search), decreases flow (Expand search), decrease toc (Expand search)
flock pattern » flow pattern (Expand search), flow patterns (Expand search), local pattern (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » not increase (Expand search), and decrease (Expand search), _ decrease (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (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 their decrease NOT decrease ) OR ( decreased to decrease flock pattern ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease their decrease not decrease ) OR ( decreased to decrease flock pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease their decrease not decrease ) OR ( decreased to decrease flock pattern ))*.