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)
"using computational design example of" » "and computational design example of" (Expand search), "using computational desire example of" (Expand search), "using computational design exame of" (Expand search), "using computational design sample of" (Expand search)

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