החיפוש שביצעת - ((irrigation requirements) or (information environments)) phase extension methods life - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
information environments » information environment, simulation environments
irrigation requirements » irrigation equipment, nutrition requirements
extension methods » extraction methods, regression methods
phase extension » base extension, based extension, home extension
methods life » methods line, method life, methods like

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