Perhaps you should try some spelling variations:
"coder decoder _ precoder program" » "coder decoder _ proder program" (Expand search), "coder decoder _ recovery program" (Expand search), "coder decoder _ precoce programa" (Expand search), "encoder decoder _ precoder program" (Expand search)
"api in python python programming" » "api in pythons python programming" (Expand search), "api in piton python programming" (Expand search), "api in pitons python programming" (Expand search), "api _ python python programming" (Expand search), "api an python python programming" (Expand search), "fpi in python python programming" (Expand search), "gpi in 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 _ precoder program") OR ("api in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder _ precoder program\") OR (\"api in python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoder _ precoder program ) OR ( api in python python programming ))*.