החיפוש שביצעת - ((communication control) OR (communication collections)) made precision angle routing - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication collections » communication applications, communication cohesion, communication foundations
communication control » communication concepts, communication culture, communication channel
made precision » model precision, de precision, mice precision
angle routing » angle crossing, aware routing, node routing

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