Perhaps you should try some spelling variations:
"advanced simulation _ constructing program" » "advanced simulation _ consulting program" (Expand search), "advanced simulation _ reconstruction program" (Expand search), "advanced simulation _ constructing ronda" (Expand search), "advanced modulation _ constructing program" (Expand search)
"advanced calculation grids computer program" » "advanced glycation grids computer program" (Expand search), "advanced calculation series computer program" (Expand search), "advanced calculation limits computer program" (Expand search), "advanced calculation script computer program" (Expand search)

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