החיפוש שביצעת - communication documentation first revision control linux* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication documentation » communication foundation, communication communication, communication conversation
documentation first » documentation fast, documentation from, documentation forms
revision control » precision control, decision control, division control
first revision » first division, first session, first edition
control linux » control linear, control libel, control light

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