Perhaps you should try some spelling variations:
"quantum dynamical system" » "quantum chemical system", "quantum dynamical systems"
"quantum dynamics system" » "quantum dynamic system", "quantum dynamisches system", "quantum dynamical systems"
"random dynamic systems" » "random dynamical systems", "random economic systems", "random dynamics systems", "freedom dynamic systems"

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: (((("quantum dynamical system") OR ("quantum dynamics system"))) OR ("random dynamic systems"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"quantum dynamical system\") OR (\"quantum dynamics system\"))) or (\"random dynamic systems\"))*".
• Removing quotes may allow a broader search: (((( quantum dynamical system ) OR ( quantum dynamics system ))) or ( random dynamic systems ))*.