Perhaps you should try some spelling variations:
"advance computational _ computer program" » "advanced computational _ computer program" (Expand search), "advancing computational _ computer program" (Expand search), "advanced computations _ computer program" (Expand search)
"using computational fluid example of" » "and computational fluid example of" (Expand search), "using computational fluid sample of" (Expand search), "using computational fluid samples of" (Expand search), "using computational field example of" (Expand search)

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