החיפוש שביצעת - ((car based) OR (ar based)) sinogram ((documentation 1) or (documentation a)) curtan-metragem* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
documentation 1 » documentation _, documentation 2, documentation 3
documentation a » documentation _, documentation fast
car based » card based, carlo based, coir based
ar based » nmr based

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