Perhaps you should try some spelling variations:
discrete cracking » concrete cracking (Expand search), discrete crack (Expand search), discrete precoding (Expand search)
cracking patterns » stacking patterns (Expand search), attacking patterns (Expand search), changing patterns (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease the (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
decrease of » decrease in (Expand search)
of discrete » _ discrete (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 OR decrease AND decrease ) OR ( decrease of discrete cracking patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease OR decrease and decrease ) OR ( decrease of discrete cracking patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease OR decrease and decrease ) OR ( decrease of discrete cracking patterns ))*.