Perhaps you should try some spelling variations:
"based computational _ computational program" » "by computational _ computational program" (Expand search)
"and computational code computing program" » "and computational model computing program" (Expand search), "and computational cost computing program" (Expand search), "and computational models computing program" (Expand search), "and computational code consulting program" (Expand search), "and computational code computer program" (Expand search), "and computational code computador program" (Expand search), "and computational modern computing program" (Expand search)

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