Perhaps you should try some spelling variations:
ligand increases » ligands increased (Expand search), and increases (Expand search), light increases (Expand search)
increases memory » increasing memory (Expand search), increases among (Expand search), increases color (Expand search)
memory processes » memory processing (Expand search), membrane processes (Expand search), levy processes (Expand search)
decrease rapidly » disease rapidly (Expand search), decrease lipid (Expand search)
rapidly decrease » rapid decrease (Expand search), rapid increase (Expand search), taping decrease (Expand search)
decrease ligand » decrease and (Expand search), decrease lipid (Expand search), decrease lodging (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 ligand increases memory processes ) OR ( decrease in decrease rapidly decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease ligand increases memory processes ) OR ( decrease in decrease rapidly decrease ))*.