Perhaps you should try some spelling variations:
quantum dynamical » quantum dynamics
quantum chemical » quantum mechanical, quantum chemistry
dynamic systems » dynamical systems, economic systems
random dynamic » random dynamics, random dynamical, freedom dynamic

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: (( random dynamic systems ) OR ( ((quantum dynamical) OR (quantum chemical)) system )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( random dynamic systems ) or ( ((quantum dynamical) OR (quantum chemical)) system ))".
• Adding a wildcard symbol may retrieve word variants: (( random dynamic systems ) or ( ((quantum dynamical) OR (quantum chemical)) system ))*.