Perhaps you should try some spelling variations:
"coder decoder coding formulation problem" » "coder decoder coding formation problem" (Expand search), "coder decoder coding formulation process" (Expand search), "coder decoder coding simulation problems" (Expand search), "coder decoder coating formulation problem" (Expand search), "coder decoder coating formulations problem" (Expand search), "coder decoder working formulation problem" (Expand search), "coder decoder codecs formulation problem" (Expand search), "coder decoder using formulation problem" (Expand search), "coder decoder codec formulation problem" (Expand search), "encoder decoder coding formulation problem" (Expand search)
"and python python python programming" » "and pythons python python programming" (Expand search), "and piton python python programming" (Expand search), "and pitons python python programming" (Expand search), "in python python python programming" (Expand search), "on python python python programming" (Expand search), "api 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 coding formulation problem") OR ("and python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder coding formulation problem\") OR (\"and python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder coding formulation problem ) OR ( and python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder coding formulation problem") OR ("and python python python programming"))*.