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 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 at » decrease akt (Expand search), decrease and (Expand search), decrease of (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (Expand search)
in mapper » in maple (Expand search), in mapeh (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 at decrease flow decrease ) OR ( decrease their decrease in mapper ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease at decrease flow decrease ) OR ( decrease their decrease in mapper ))*.