החיפוש שביצעת - communication control basic dimensions regression lines* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication control » communication concepts, communication culture, communication channel
dimensions regression » dimensional regression, dimensions impression, dimensions session
basic dimensions » based dimension, pacific dimensions, design dimensions
regression lines » regression line, regression splines, regression linear
control basic » control basics, control asia, control based

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