Perhaps you should try some spelling variations:
observational clinical » observation clinical, observations clinical, observational logic
observational contacts » observational contrains, observational concepts, observational constraints
observational context » observational concepts, 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 cinema) OR (observational context))) OR (observational clinical))) OR (observational contacts)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((observational cinema) OR (observational context))) or (observational clinical))) or (observational contacts))".
• Adding a wildcard symbol may retrieve word variants: ((((((observational cinema) OR (observational context))) or (observational clinical))) or (observational contacts))*.