Perhaps you should try some spelling variations:
"coder decoder java activity program" » "encoder decoder java activity program" (Expand search), "coder decoder data activity program" (Expand search), "coder decoder gamma activity program" (Expand search), "coder decoder fauna activity program" (Expand search), "coder codes java activity program" (Expand search), "coder xcode java activity program" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 decoder java activity program") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder java activity program\") OR (\"in python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoder java activity program ) OR ( in python python python programming ))*.