Perhaps you should try some spelling variations:
"by computational using reference method" » "by computation using reference method" (Expand search), "by computations using reference method" (Expand search), "by computacional usinas reference method" (Expand search), "_ computational using reference method" (Expand search), "and computational using reference method" (Expand search), "by computational using difference method" (Expand search), "by computational using differences method" (Expand search), "by computational using difference methods" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computational using reference method\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( by computational using reference method ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computational using reference method") OR ("using coding python python programming"))*.