Perhaps you should try some spelling variations:
observational clinical » observation clinical, observations clinical, observational logic
observational concepts » observation concepts, observational concerns, observational conceptual
observational context » observational contacts, observation content, observationsin contexts
observational cinema » observational economy, observational clues, observational case

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 clinical) OR (observational cinema))) OR (((observational context) OR (observational concepts)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((observational clinical) or (observational cinema))) or (((observational context) OR (observational concepts))))".
• Adding a wildcard symbol may retrieve word variants: ((((observational clinical) or (observational cinema))) or (((observational context) OR (observational concepts))))*.