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 estimation and computing program" » "advanced automation and computing program" (Expand search), "advanced gestation and computing program" (Expand search), "advanced optimization and computing program" (Expand search), "advanced estimation and consulting program" (Expand search), "advanced estimation and computador program" (Expand search), "advanced estimation and computer programs" (Expand search), "advanced estimation in computing program" (Expand search), "advanced estimation of computing program" (Expand search), "advanced estimation _ computing program" (Expand search), "advanced estimation grid computing program" (Expand search), "advanced estimation fog computing program" (Expand search)

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