Perhaps you should try some spelling variations:
fear effective » their effective (Expand search), cheap effective (Expand search), beams effective (Expand search)
decrease flow » decreases flow (Expand search), decrease low (Expand search), decrease food (Expand search)
flow decrease » flow increase (Expand search), to decrease (Expand search), not decrease (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
decrease can » decrease in (Expand search), decrease at (Expand search), decrease on (Expand search)
can decrease » can increase (Expand search), to decrease (Expand search), the decrease (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)

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 can decrease AND decrease ) OR ( decrease flow decrease fear effective ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease can decrease and decrease ) OR ( decrease flow decrease fear effective ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decrease and decrease ) OR ( decrease flow decrease fear effective ))*.