החיפוש שביצעת - information propagation problems ((((functions 1) OR (functions 12))) OR (functions 2)) lilley - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
information propagation » information presentation, information organization
propagation problems » production problems, protection problems, pronunciation problems
functions 12 » functions 3
functions 1 » functions 15, functions 10, functions 11
functions 2 » functions 3

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