Perhaps you should try some spelling variations:
decrease tanning » decreased running (Expand search), decrease walking (Expand search), decreases handling (Expand search)
decrease faster » decrease after (Expand search), decrease further (Expand search), decreased after (Expand search)
tanning process » training process (Expand search), planning process (Expand search), turning process (Expand search)
decreased rate » increased rate (Expand search), decreased base (Expand search), decreased native (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to 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 faster decrease tanning process ) OR ( decreased rate decrease _ decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease faster decrease tanning process ) OR ( decreased rate decrease _ decrease ))*.