Perhaps you should try some spelling variations:
"using computational code computer program" » "and computational code computer program" (Expand search), "using computational model computer program" (Expand search), "using computational cost computer program" (Expand search), "using computational models computer program" (Expand search), "using computational node computer program" (Expand search), "using computational one computer program" (Expand search)
"applying computational and computer program" » "applying computational fluid computer program" (Expand search), "applying computational _ computer program" (Expand search)

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