החיפוש שביצעת - information agents ((((waste decision) or (first session))) or (post decision)) based grouping - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
information agents » information age, information access, information about
waste decision » fate decision, ante decision, base decision
based grouping » based cropping, blood grouping, based group
post decision » costs decision, soft decision, joint decision

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