Perhaps you should try some spelling variations:
discrete variable » discrete variables (Expand search)
variable pattern » variable matter (Expand search), variate pattern (Expand search), variable water (Expand search)
break discrete » are discrete (Expand search), free discrete (Expand search)
decrease break » decreases breast (Expand search), decreases areas (Expand search), decrease treg (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 AND decrease ) OR ( decrease break discrete variable pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease AND decrease ) OR ( decrease break discrete variable pattern ))*.