Perhaps you should try some spelling variations:
"coder decoder threading and programming" » "coder decoder threading _ programming" (Expand search), "coder decoder threading goal programming" (Expand search), "encoder decoder threading and programming" (Expand search), "coder decoder reading and programming" (Expand search), "coder decoder spreading and programming" (Expand search), "coder decoder reading an programming" (Expand search)
"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)

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 threading and programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder threading and programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder threading and programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder threading and programming") OR ("on python python python programming"))*.