Perhaps you should try some spelling variations:
"based complexation and nonlinear programming" » "based complexation and linear programming" (Expand search), "based compensation and nonlinear programming" (Expand search), "and complexation and nonlinear programming" (Expand search), "based competition and nonlinear programming" (Expand search), "based computation and nonlinear programming" (Expand search), "based complexation _ 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.

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