Perhaps you should try some spelling variations:
"software implementation model coding problem" » "software implementation of coding problem" (Expand search), "software implementation and coding problem" (Expand search), "software implementation on coding problem" (Expand search), "software implementation model coding problems" (Expand search), "software implementation model coping problem" (Expand search), "software implementation model loading problem" (Expand search), "software implementation modern coding problem" (Expand search), "software implementation model cooling problem" (Expand search), "software implementation novel coding problem" (Expand search)
"python codigo python python programming" » "python coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigo pythons python programming" (Expand search), "python codigo piton python programming" (Expand search), "python codigo 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: (("software implementation model coding problem") OR ("python codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"software implementation model coding problem\") OR (\"python codigo python python programming\"))*".
• Removing quotes may allow a broader search: (( software implementation model coding problem ) OR ( python codigo python python programming ))*.