Perhaps you should try some spelling variations:
"using computational in computing program" » "and computational in computing program" (Expand search), "using computational in consulting program" (Expand search), "using computational in computador program" (Expand search), "using computational in computer programs" (Expand search), "using computational and computing program" (Expand search), "using computational _ computing program" (Expand search), "using computational 3d computing program" (Expand search), "using computational of computing program" (Expand search)
"dft calculations in computer program" » "dft calculation in computer program" (Expand search), "dft calculations and computer program" (Expand search), "dft calculations of computer program" (Expand search), "dft calculations _ computer program" (Expand search)

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