Perhaps you should try some spelling variations:
"coder implementation _ housing problem" » "code implementation _ housing problem" (Expand search), "decoder implementation _ housing problem" (Expand search), "model implementation _ housing problem" (Expand search), "coder implementation _ housing problems" (Expand search), "coder implementation _ routing problem" (Expand search), "coder implementation _ housing program" (Expand search)
"python coding with python programming" » "action coding with python programming" (Expand search), "python code with python programming" (Expand search), "python loading with python programming" (Expand search), "python feeding with python programming" (Expand search), "python reading with 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 implementation _ housing problem") OR ("python coding with python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation _ housing problem\") OR (\"python coding with python programming\"))".
• Removing quotes may allow a broader search: (( coder implementation _ housing problem ) OR ( python coding with python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder implementation _ housing problem") OR ("python coding with python programming"))*.