החיפוש שביצעת - ((communication cohesion) or (communication communication)) physics dimensions bounded tree* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication cohesion » communication collections, communication control, communication cost
physics dimensions » physical dimensions, physics designs, basic dimensions
dimensions bounded » dimensions bound, dimensions boundary, dimension bound
bounded tree » bounded degree

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