Perhaps you should try some spelling variations:
"coder _ complexity java programming" » "coder _ complexity and programming" (Expand search), "coder _ complexity based programming" (Expand search), "coder _ complexity goal programming" (Expand search), "coder _ complexity data programming" (Expand search), "coder _ complexity an programming" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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: (("coder _ complexity java programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ complexity java programming\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ complexity java programming ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ complexity java programming") OR ("python coding python python programming"))*.