Perhaps you should try some spelling variations:
"coder decoder fitting linear programming" » "coder decoder fitting nonlinear programming" (Expand search), "coder decoder routing linear programming" (Expand search), "coder decoder testing linear programming" (Expand search), "encoder decoder fitting linear programming" (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 fitting linear programming") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder fitting linear programming\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder fitting linear programming ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder fitting linear programming") OR ("in python python python programming"))*.