Perhaps you should try some spelling variations:
"coder the complexity the problem" » "coder the complexity theory problem" (Expand search), "coder the complexity and problem" (Expand search), "coder the complexity _ problem" (Expand search), "code the complexity the problem" (Expand search), "cover the complexity the problem" (Expand search), "poder the complexity the problem" (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: "((\"coder the complexity the problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( coder the complexity the problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder the complexity the problem") OR ("using coding python python programming"))*.