החיפוש שביצעת - information documents et ((explanation from) or (((exploration from) or (exploration _)))) river* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
information documents » information documentation, information agents, information requirements
explanation from » explanations from, explorations from, implantation from
exploration from » exploration a, exploration case
documents et » documents etc, documents _, documents a

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