Perhaps you should try some spelling variations:
"advanced simulation _ coding program" » "advanced modulation _ coding program" (Expand search), "advanced calculation _ coding program" (Expand search), "advanced simulation _ cloning program" (Expand search), "advanced simulation _ loading program" (Expand search), "advanced simulation _ cooling programs" (Expand search)
"and optimization python computer program" » "and optimization method computer program" (Expand search), "and optimization option computer program" (Expand search), "and optimization methods computer program" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced simulation _ coding program") OR ("and optimization python computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation _ coding program\") OR (\"and optimization python computer program\"))".
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