Perhaps you should try some spelling variations:
"and computational using nonlinear programing" » "and computational using nonlinear programming" (Expand search), "and computational using linear programing" (Expand search), "and computational using linear programming" (Expand search), "and computation using nonlinear programing" (Expand search), "and computations using nonlinear programing" (Expand search), "and computacional usinas nonlinear programing" (Expand search), "_ computational using nonlinear programing" (Expand search)
"using modulo python python programming" » "using codigo python python programming" (Expand search), "using modulo pythons python programming" (Expand search), "using modulo piton python programming" (Expand search), "using modulo pitons python programming" (Expand search), "using module python python programming" (Expand search), "using model python python programming" (Expand search), "using models python python programming" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("and computational using nonlinear programing") OR ("using modulo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computational using nonlinear programing\") OR (\"using modulo python python programming\"))".
• Removing quotes may allow a broader search: (( and computational using nonlinear programing ) OR ( using modulo python python programming )).
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