Perhaps you should try some spelling variations:
"stochastic differential equation" » "stochastic differential equations"
"stochastic difference equationss" » "stochastic difference equation", "stochastic differences equations", "stochastic differenced equations", "stochastic differential equationss"
"stochastic difference equations" » "stochastic differential equations"

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: (("stochastic differential equation") OR ((("stochastic difference equationss") OR ("stochastic difference equations")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"stochastic differential equation\") or (((\"stochastic difference equationss\") OR (\"stochastic difference equations\"))))".
• Removing quotes may allow a broader search: (( stochastic differential equation ) or ((( stochastic difference equationss ) OR ( stochastic difference equations )))).
• Adding a wildcard symbol may retrieve word variants: (("stochastic differential equation") or ((("stochastic difference equationss") OR ("stochastic difference equations"))))*.