Perhaps you should try some spelling variations:
"classical mechanisms" » "classical mechanistic", "classical mechanical", "physical mechanisms", "classical mechanistics", "classical mechanicals"
"classical mechanism" » "classical mechanistic", "classical mechanical", "physical mechanism"
"spatial stochastic" » "optimal stochastic"
"classical mechanics" » "classical mechanical"

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: (("classical mechanics") OR ((((("classical mechanisms") OR ("classical mechanism"))) OR ("spatial stochastic")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"classical mechanics\") or (((((\"classical mechanisms\") OR (\"classical mechanism\"))) or (\"spatial stochastic\"))))".
• Removing quotes may allow a broader search: (( classical mechanics ) or ((((( classical mechanisms ) OR ( classical mechanism ))) or ( spatial stochastic )))).
• Adding a wildcard symbol may retrieve word variants: (("classical mechanics") or ((((("classical mechanisms") OR ("classical mechanism"))) or ("spatial stochastic"))))*.