Perhaps you should try some spelling variations:
"using computation using computer program" » "using computational using computer program" (Expand search), "using imputation using computer program" (Expand search), "using compilation using computer program" (Expand search), "using computations using computer program" (Expand search), "using composition using computer program" (Expand search), "using communication using computer program" (Expand search)
"by computation in decoding program" » "by computation in welcoming program" (Expand search), "by computation in deworming program" (Expand search), "by computation in feeding program" (Expand search), "by computational in decoding program" (Expand search), "of computation in decoding program" (Expand search), "_ computation in decoding program" (Expand search), "by computation and decoding program" (Expand search), "by computation of decoding program" (Expand search), "by imputation in decoding program" (Expand search), "by computation _ decoding program" (Expand search), "by computation in decaying program" (Expand search)

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