Perhaps you should try some spelling variations:
"distributed simulation in learning program" » "distributed generation in learning program" (Expand search), "distributed simulation in learning programme" (Expand search), "distributed simulation in learning problems" (Expand search), "distributed simulation in learning process" (Expand search), "distributed simulation and learning program" (Expand search)
"advanced modulation code computer program" » "advanced calculation code computer program" (Expand search), "advanced oxidation code computer program" (Expand search), "advanced modulation codes computer program" (Expand search), "advanced modulation model computer program" (Expand search), "advanced modulation doped computer program" (Expand search), "advanced modulation node computer program" (Expand search), "advanced modulation one computer program" (Expand search)

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