Perhaps you should try some spelling variations:
"advanced simulation and computer program" » "advanced modulation and computer program" (Expand search), "advanced calculation and computer program" (Expand search), "advanced simulation _ computer program" (Expand search)
"advanced simulation from complex programs" » "advanced modulation from complex programs" (Expand search), "advanced calculation from complex programs" (Expand search), "advanced simulation from complex program" (Expand search), "advanced simulation from complex programmes" (Expand search), "advanced simulation from complexa programa" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced simulation and computer program") OR ("advanced simulation from complex programs"))~.
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