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