Perhaps you should try some spelling variations:
"based computational and computer program" » "and computational and computer program" (Expand search), "by computational and computer program" (Expand search), "based computational fluid computer program" (Expand search), "based computational _ computer program" (Expand search)
"advanced simulation method coding program" » "advanced modulation method coding program" (Expand search), "advanced calculation method coding program" (Expand search), "advanced simulation methods coding program" (Expand search), "advanced simulation method cloning program" (Expand search), "advanced simulation method loading program" (Expand search), "advanced simulation method cooling programs" (Expand search), "advanced simulation method cooling program" (Expand search), "advanced simulation method fnding program" (Expand search), "advanced simulation method according program" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced simulation method coding program") OR ("based computational and computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation method coding program\") OR (\"based computational and computer program\"))*".
• Removing quotes may allow a broader search: (( advanced simulation method coding program ) OR ( based computational and computer program ))*.