Perhaps you should try some spelling variations:
"coder code code and introduction" » "coder code code an introduction" (Expand search), "modern code code and introduction" (Expand search), "color code code and introduction" (Expand search), "gcode code code and introduction" (Expand search), "coder code cdc and introduction" (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 code code and introduction") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder code code and introduction\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder code code and introduction ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder code code and introduction") OR ("in python python python programming"))*.