Perhaps you should try some spelling variations:
"and computational using nonlinear problems" » "and computation using nonlinear problems" (Expand search), "and computations using nonlinear problems" (Expand search), "and computacional usinas nonlinear problems" (Expand search), "_ computational using nonlinear problems" (Expand search), "and computational using linear problems" (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.

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