החיפוש שביצעת - communication collections rare ((precision manure) or (precision machine)) routing - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication collections » communication applications, communication cohesion, communication foundations
precision machine » precision machining, prediction machine, precision medicine
collections rare » collections a, collections data, collections root
precision manure » precision angle, precision makers, precision micro

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