Perhaps you should try some spelling variations:
"code code based sample program" » "code code based simples program" (Expand search), "code code based simplex program" (Expand search), "code code based sampling program" (Expand search), "code code and sample program" (Expand search), "code case based sample program" (Expand search), "code cdc based sample program" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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: (("code code based sample program") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code code based sample program\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( code code based sample program ) OR ( _ python python python programming ))*.