Perhaps you should try some spelling variations:
their processed » their processes (Expand search), the processed (Expand search), their process (Expand search)
decrease ligand » decrease and (Expand search), decrease lipid (Expand search), decrease lodging (Expand search)
ligand decrease » and decrease (Expand search), ligand release (Expand search), ligands increased (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
fear decrease » break decrease (Expand search), merr decreases (Expand search), can decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (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 in decrease their processed ) OR ( decrease fear decrease ligand decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease their processed ) OR ( decrease fear decrease ligand decrease ))*.