Perhaps you should try some spelling variations:
observational clinical » observation clinical, observations clinical, observational logic
observational cinema » observational context, observational economy, observational clues
observation content » observation concept, observation consistent, observational context
observational case » observation case, observational clues, observational basis

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: ((((((observational cinema) OR (observational case))) OR (observational clinical))) OR (observation content)).
• Adding a wildcard symbol may retrieve word variants: ((((((observational cinema) or (observational case))) or (observational clinical))) or (observation content))*.