Perhaps you should try some spelling variations:
dynamics experiments » dynamics experimental, physics experiments
using panels » using panel, using pandas, using channels
being papers » using papers, breaking papers, being papists
crowd » crown

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: crowd dynamics experiments ((using panels) OR (being papers)).
• Adding a wildcard symbol may retrieve word variants: crowd dynamics experiments ((using panels) or (being papers))*.