Perhaps you should try some spelling variations:
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)
"coder coder string an object" » "coder cordel string an object" (Expand search), "coder closed string an object" (Expand search), "coder modelo string an object" (Expand search), "coder decoder string an object" (Expand search), "code code string an object" (Expand search), "decoder codec string an object" (Expand search), "coder coder string and object" (Expand search), "coder coder string in object" (Expand search), "coder coder strings and object" (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 coder string an object") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder string an object\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder string an object ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder string an object") OR ("on python python python programming"))*.