Perhaps you should try some spelling variations:
decrease further » increase further (Expand search), disease further (Expand search), decrease the (Expand search)
further decrease » further increase (Expand search), faster decrease (Expand search), the decrease (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)
method affects » method effects (Expand search), methods affect (Expand search), method effect (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (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 NOT decrease further decrease ) OR ( decrease ligand decrease method affects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease not decrease further decrease ) OR ( decrease ligand decrease method affects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease not decrease further decrease ) OR ( decrease ligand decrease method affects ))*.