Perhaps you should try some spelling variations:
"and complexation with linear programming" » "and competition with linear programming" (Expand search), "and combination with linear programming" (Expand search), "and composition with linear programming" (Expand search), "and completion with linear programming" (Expand search), "and complication with linear programming" (Expand search), "and complications with linear programming" (Expand search), "and complexation with liver programming" (Expand search), "and complexation with nonlinear programming" (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 complexation with linear programming") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and complexation with linear programming\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( and complexation with linear programming ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and complexation with linear programming") OR ("using coding python python programming"))*.