Perhaps you should try some spelling variations:
"defended cross-correlations" » "detrended cross-correlations", "defended from-correlations", "extended cross-correlations"
"defense cross-correlations" » "defense cost-correlations", "defense actors-correlations", "defense areas-correlations"
"dense cross-correlations" » "dense criss-correlations", "densely cross-correlations", "dense crowds-correlations"

Try widening your search to All Fields.

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: (("defended cross-correlations") OR ((("defense cross-correlations") OR ("dense cross-correlations")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"defended cross-correlations\") or (((\"defense cross-correlations\") OR (\"dense cross-correlations\"))))".
• Removing quotes may allow a broader search: (( defended cross-correlations ) or ((( defense cross-correlations ) OR ( dense cross-correlations )))).
• Adding a wildcard symbol may retrieve word variants: (("defended cross-correlations") or ((("defense cross-correlations") OR ("dense cross-correlations"))))*.