Perhaps you should try some spelling variations:
"advanced modulation in computer program" » "advanced calculation in computer program" (Expand search), "advanced oxidation in computer program" (Expand search), "advanced modulation of computer program" (Expand search), "advanced modulation _ computer program" (Expand search)
"advanced simulation using computador program" » "advanced calculation using computador program" (Expand search), "advanced simulation using computador programas" (Expand search), "advanced simulation using computador programacao" (Expand search), "advanced simulation using computador protecao" (Expand search), "advanced simulation usando computador program" (Expand search), "advanced simulation musico computador program" (Expand search), "advanced simulation musica computador program" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced modulation in computer program") OR ("advanced simulation using computador program"))~.
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