החיפוש שביצעת - communication education ((((basic motif) OR (based motif))) or (basic motion)) problems among - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication education » community education, communication communication, communication information
basic motion » basic notions, basic notation, basic method
basic motif » basic motions, basic matrix, basic metric
based motif » based motion, based motor, based movie

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